120311331023 has 48 divisors (see below), whose sum is σ = 150210352800. Its totient is φ = 95606784000.

The previous prime is 120311331001. The next prime is 120311331037. The reversal of 120311331023 is 320133113021.

It is not a de Polignac number, because 120311331023 - 2¹⁸ = 120311068879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120311330986 and 120311331004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120311331073) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1545023 + ... + 1621023.

It is an arithmetic number, because the mean of its divisors is an integer number (3129382350).

Almost surely, 2^120311331023 is an apocalyptic number.

120311331023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120311331023 is a deficient number, since it is larger than the sum of its proper divisors (29899021777).

120311331023 is a wasteful number, since it uses less digits than its factorization.

120311331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76092 (or 76079 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 120311331023 its reverse (320133113021), we get a palindrome (440444444044).

The spelling of 120311331023 in words is "one hundred twenty billion, three hundred eleven million, three hundred thirty-one thousand, twenty-three".