31031011022113 has 8 divisors (see below), whose sum is σ = 32981350500800. Its totient is φ = 29112384380688.

The previous prime is 31031011022071. The next prime is 31031011022119. The reversal of 31031011022113 is 31122011013013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31031011022113 - 2³³ = 31022421087521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31031011022119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7928207298 + ... + 7928211211.

It is an arithmetic number, because the mean of its divisors is an integer number (4122668812600).

Almost surely, 2^{31031011022113} is an apocalyptic number.

It is an amenable number.

31031011022113 is a deficient number, since it is larger than the sum of its proper divisors (1950339478687).

31031011022113 is a wasteful number, since it uses less digits than its factorization.

31031011022113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15856418631.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31031011022113 its reverse (31122011013013), we get a palindrome (62153022035126).

It can be divided in two parts, 3103101 and 1022113, that added together give a palindrome (4125214).

The spelling of 31031011022113 in words is "thirty-one trillion, thirty-one billion, eleven million, twenty-two thousand, one hundred thirteen".