120123110031 has 16 divisors (see below), whose sum is σ = 168713606400. Its totient is φ = 75813331968.

The previous prime is 120123110027. The next prime is 120123110039. The reversal of 120123110031 is 130011321021.

It is a happy number.

It is not a de Polignac number, because 120123110031 - 2² = 120123110027 is a prime.

It is a super-2 number, since 2×120123110031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123110039) 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, 667531 + ... + 828156.

It is an arithmetic number, because the mean of its divisors is an integer number (10544600400).

Almost surely, 2^120123110031 is an apocalyptic number.

120123110031 is a deficient number, since it is larger than the sum of its proper divisors (48590496369).

120123110031 is a wasteful number, since it uses less digits than its factorization.

120123110031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497118.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 120123110031 its reverse (130011321021), we get a palindrome (250134431052).

The spelling of 120123110031 in words is "one hundred twenty billion, one hundred twenty-three million, one hundred ten thousand, thirty-one".