31120130211023 has 16 divisors (see below), whose sum is σ = 36123057561600. Its totient is φ = 26257673702400.

The previous prime is 31120130211017. The next prime is 31120130211041. The reversal of 31120130211023 is 32011203102113.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-31120130211023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31120130210986 and 31120130211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120130211823) 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, 48523823 + ... + 49160976.

It is an arithmetic number, because the mean of its divisors is an integer number (2257691097600).

Almost surely, 2^{31120130211023} is an apocalyptic number.

31120130211023 is a deficient number, since it is larger than the sum of its proper divisors (5002927350577).

31120130211023 is an equidigital number, since it uses as much as digits as its factorization.

31120130211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97685518.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31120130211023 its reverse (32011203102113), we get a palindrome (63131333313136).

The spelling of 31120130211023 in words is "thirty-one trillion, one hundred twenty billion, one hundred thirty million, two hundred eleven thousand, twenty-three".