123151305513613 has 32 divisors (see below), whose sum is σ = 133510260925440. Its totient is φ = 112921319013120.

The previous prime is 123151305513611. The next prime is 123151305513617. The reversal of 123151305513613 is 316315503151321.

It is a cyclic number.

It is not a de Polignac number, because 123151305513613 - 2¹ = 123151305513611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123151305513611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5589898908 + ... + 5589920938.

It is an arithmetic number, because the mean of its divisors is an integer number (4172195653920).

Almost surely, 2^{123151305513613} is an apocalyptic number.

123151305513613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123151305513613 is a deficient number, since it is larger than the sum of its proper divisors (10358955411827).

123151305513613 is a wasteful number, since it uses less digits than its factorization.

123151305513613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26509.

The product of its (nonzero) digits is 121500, while the sum is 40.

Adding to 123151305513613 its reverse (316315503151321), we get a palindrome (439466808664934).

The spelling of 123151305513613 in words is "one hundred twenty-three trillion, one hundred fifty-one billion, three hundred five million, five hundred thirteen thousand, six hundred thirteen".