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123203001210231 = 31979831321249539
BaseRepresentation
bin11100000000110101101111…
…000111110101010101110111
3121011020002110222122021100110
4130000311233013311111313
5112122024221302211411
61114010402152514103
734644060136231305
oct3400655707652567
9534202428567313
10123203001210231
1136290110318818
12119996979ab933
135398cbac95087
14225d0b2887275
15e39bd5a512a6
hex700d6f1f5577

123203001210231 has 64 divisors (see below), whose sum is σ = 177349874688000. Its totient is φ = 75844060680960.

The previous prime is 123203001210229. The next prime is 123203001210257. The reversal of 123203001210231 is 132012100302321.

It is not a de Polignac number, because 123203001210231 - 21 = 123203001210229 is a prime.

It is a super-2 number, since 2×1232030012102312 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123203001210198 and 123203001210207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203001210031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 493597660 + ... + 493847198.

It is an arithmetic number, because the mean of its divisors is an integer number (2771091792000).

Almost surely, 2123203001210231 is an apocalyptic number.

123203001210231 is a deficient number, since it is larger than the sum of its proper divisors (54146873477769).

123203001210231 is a wasteful number, since it uses less digits than its factorization.

123203001210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251044.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123203001210231 its reverse (132012100302321), we get a palindrome (255215101512552).

The spelling of 123203001210231 in words is "one hundred twenty-three trillion, two hundred three billion, one million, two hundred ten thousand, two hundred thirty-one".

Divisors: 1 3 19 57 79 83 237 249 1321 1501 1577 3963 4503 4731 6557 19671 25099 75297 104359 109643 124583 249539 313077 328929 373749 748617 1982821 2083217 4741241 5948463 6249651 8661797 14223723 19713581 20711737 25985391 59140743 62135211 164574143 329641019 374558039 393523003 493722429 988923057 1123674117 1180569009 1636227223 4908681669 6263179361 18789538083 26041640501 27360204577 31088317237 78124921503 82080613731 93264951711 494791169519 519843886963 1484373508557 1559531660889 2161456161583 6484368484749 41067667070077 123203001210231