31120013423102 has 16 divisors (see below), whose sum is σ = 48709710122112. Its totient is φ = 14883446823960.

The previous prime is 31120013423039. The next prime is 31120013423183. The reversal of 31120013423102 is 20132431002113.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27408413 + ... + 28521239.

It is an arithmetic number, because the mean of its divisors is an integer number (3044356882632).

Almost surely, 2^{31120013423102} is an apocalyptic number.

31120013423102 is a deficient number, since it is larger than the sum of its proper divisors (17589696699010).

31120013423102 is a wasteful number, since it uses less digits than its factorization.

31120013423102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720783.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31120013423102 its reverse (20132431002113), we get a palindrome (51252444425215).

The spelling of 31120013423102 in words is "thirty-one trillion, one hundred twenty billion, thirteen million, four hundred twenty-three thousand, one hundred two".