120130031021 has 128 divisors (see below), whose sum is σ = 183973773312. Its totient is φ = 75271680000.

The previous prime is 120130031017. The next prime is 120130031023.

120130031021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 120130031021 - 2² = 120130031017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120130030987 and 120130031005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120130031023) 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 127 ways as a sum of consecutive naturals, for example, 12128171 + ... + 12138071.

It is an arithmetic number, because the mean of its divisors is an integer number (1437295104).

Almost surely, 2^120130031021 is an apocalyptic number.

120130031021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120130031021 is a deficient number, since it is larger than the sum of its proper divisors (63843742291).

120130031021 is a wasteful number, since it uses less digits than its factorization.

120130031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003.

The product of its (nonzero) digits is 36, while the sum is 14.

It can be divided in two parts, 1201300 and 31021, that added together give a palindrome (1232321).

The spelling of 120130031021 in words is "one hundred twenty billion, one hundred thirty million, thirty-one thousand, twenty-one".