120231323031 has 16 divisors (see below), whose sum is σ = 162918766080. Its totient is φ = 78857130240.

The previous prime is 120231323027. The next prime is 120231323057. The reversal of 120231323031 is 130323132021.

It is not a de Polignac number, because 120231323031 - 2² = 120231323027 is a prime.

It is a super-2 number, since 2×120231323031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120231322989 and 120231323007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231323071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950650 + ... + 1069671.

It is an arithmetic number, because the mean of its divisors is an integer number (10182422880).

Almost surely, 2^120231323031 is an apocalyptic number.

120231323031 is a deficient number, since it is larger than the sum of its proper divisors (42687443049).

120231323031 is a wasteful number, since it uses less digits than its factorization.

120231323031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020646.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 120231323031 its reverse (130323132021), we get a palindrome (250554455052).

The spelling of 120231323031 in words is "one hundred twenty billion, two hundred thirty-one million, three hundred twenty-three thousand, thirty-one".