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123120320341 = 9711311879463
BaseRepresentation
bin111001010101010001…
…0101111111101010101
3102202210110121022022111
41302222202233331111
54004122300222331
6132321035431021
711616015312154
oct1625242577525
9382713538274
10123120320341
1148240235a67
121ba408b5471
13b7c17a8575
145d5d90d59b
153308db4db1
hex1caa8aff55

123120320341 has 16 divisors (see below), whose sum is σ = 125609387904. Its totient is φ = 120658212864.

The previous prime is 123120320333. The next prime is 123120320357. The reversal of 123120320341 is 143023021321.

It is a cyclic number.

It is not a de Polignac number, because 123120320341 - 23 = 123120320333 is a prime.

It is a super-2 number, since 2×1231203203412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123120320041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13005976 + ... + 13015438.

It is an arithmetic number, because the mean of its divisors is an integer number (7850586744).

Almost surely, 2123120320341 is an apocalyptic number.

It is an amenable number.

123120320341 is a deficient number, since it is larger than the sum of its proper divisors (2489067563).

123120320341 is a wasteful number, since it uses less digits than its factorization.

123120320341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10860.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123120320341 its reverse (143023021321), we get a palindrome (266143341662).

The spelling of 123120320341 in words is "one hundred twenty-three billion, one hundred twenty million, three hundred twenty thousand, three hundred forty-one".

Divisors: 1 97 113 1187 9463 10961 115139 134131 917911 1069319 11232581 13010707 103723943 1089560357 1269281653 123120320341