120231120031 has 4 divisors (see below), whose sum is σ = 131161221864. Its totient is φ = 109301018200.

The previous prime is 120231120019. The next prime is 120231120041. The reversal of 120231120031 is 130021132021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120231120031 - 2⁵ = 120231119999 is a prime.

It is a super-2 number, since 2×120231120031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120231119987 and 120231120014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231120011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5465050900 + ... + 5465050921.

It is an arithmetic number, because the mean of its divisors is an integer number (32790305466).

Almost surely, 2^120231120031 is an apocalyptic number.

120231120031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120231120031 is a deficient number, since it is larger than the sum of its proper divisors (10930101833).

120231120031 is a wasteful number, since it uses less digits than its factorization.

120231120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10930101832.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120231120031 its reverse (130021132021), we get a palindrome (250252252052).

The spelling of 120231120031 in words is "one hundred twenty billion, two hundred thirty-one million, one hundred twenty thousand, thirty-one".