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123523363231 = 1223963110487
BaseRepresentation
bin111001100001010010…
…0001111000110011111
3102210211120000000012221
41303002210033012133
54010433440110411
6132425034210211
711632011156262
oct1630244170637
9383746000187
10123523363231
114842779a064
121bb33883967
13b857143b98
145d9b266cd9
15332e47a071
hex1cc290f19f

123523363231 has 8 divisors (see below), whose sum is σ = 123648989184. Its totient is φ = 123397779960.

The previous prime is 123523363219. The next prime is 123523363241. The reversal of 123523363231 is 132363325321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123523363231 - 25 = 123523363199 is a prime.

It is a super-2 number, since 2×1235233632312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

123523363231 is a modest number, since divided by 363231 gives 123523 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123523363241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11773470 + ... + 11783956.

It is an arithmetic number, because the mean of its divisors is an integer number (15456123648).

Almost surely, 2123523363231 is an apocalyptic number.

123523363231 is a deficient number, since it is larger than the sum of its proper divisors (125625953).

123523363231 is a wasteful number, since it uses less digits than its factorization.

123523363231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21341.

The product of its digits is 58320, while the sum is 34.

Adding to 123523363231 its reverse (132363325321), we get a palindrome (255886688552).

The spelling of 123523363231 in words is "one hundred twenty-three billion, five hundred twenty-three million, three hundred sixty-three thousand, two hundred thirty-one".

Divisors: 1 1223 9631 10487 11778713 12825601 101000297 123523363231