120000031123 has 12 divisors (see below), whose sum is σ = 139686085560. Its totient is φ = 102787749792.

The previous prime is 120000031117. The next prime is 120000031141. The reversal of 120000031123 is 321130000021.

It is a de Polignac number, because none of the positive numbers 2^k-120000031123 is a prime.

It is a super-2 number, since 2×120000031123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120000031163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 753018 + ... + 898351.

It is an arithmetic number, because the mean of its divisors is an integer number (11640507130).

Almost surely, 2^120000031123 is an apocalyptic number.

120000031123 is a deficient number, since it is larger than the sum of its proper divisors (19686054437).

120000031123 is a wasteful number, since it uses less digits than its factorization.

120000031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652866 (or 1652859 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 120000031123 its reverse (321130000021), we get a palindrome (441130031144).

The spelling of 120000031123 in words is "one hundred twenty billion, thirty-one thousand, one hundred twenty-three".