123120131013 has 12 divisors (see below), whose sum is σ = 194007479328. Its totient is φ = 74618261160.

The previous prime is 123120130993. The next prime is 123120131047. The reversal of 123120131013 is 310131021321.

It is not a de Polignac number, because 123120131013 - 2⁵ = 123120130981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123120131513) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 621818745 + ... + 621818942.

It is an arithmetic number, because the mean of its divisors is an integer number (16167289944).

Almost surely, 2^123120131013 is an apocalyptic number.

It is an amenable number.

123120131013 is a deficient number, since it is larger than the sum of its proper divisors (70887348315).

123120131013 is a wasteful number, since it uses less digits than its factorization.

123120131013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243637704 (or 1243637701 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123120131013 its reverse (310131021321), we get a palindrome (433251152334).

The spelling of 123120131013 in words is "one hundred twenty-three billion, one hundred twenty million, one hundred thirty-one thousand, thirteen".