123493031765 has 16 divisors (see below), whose sum is σ = 151819058160. Its totient is φ = 96376558080.

The previous prime is 123493031741. The next prime is 123493031863. The reversal of 123493031765 is 567130394321.

It can be written as a sum of positive squares in 8 ways, for example, as 44181517636 + 79311514129 = 210194^2 + 281623^2 .

It is not a de Polignac number, because 123493031765 - 2¹⁰ = 123493030741 is a prime.

It is a super-2 number, since 2×123493031765² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3654527 + ... + 3688163.

It is an arithmetic number, because the mean of its divisors is an integer number (9488691135).

Almost surely, 2^123493031765 is an apocalyptic number.

It is an amenable number.

123493031765 is a deficient number, since it is larger than the sum of its proper divisors (28326026395).

123493031765 is a wasteful number, since it uses less digits than its factorization.

123493031765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51592.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 123493031765 in words is "one hundred twenty-three billion, four hundred ninety-three million, thirty-one thousand, seven hundred sixty-five".