31031022111103 has 8 divisors (see below), whose sum is σ = 35465431713920. Its totient is φ = 26596964119320.

The previous prime is 31031022110897. The next prime is 31031022111139. The reversal of 31031022111103 is 30111122013013.

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

It is a de Polignac number, because none of the positive numbers 2^k-31031022111103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031022111503) 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, 87713613 + ... + 88066678.

It is an arithmetic number, because the mean of its divisors is an integer number (4433178964240).

Almost surely, 2^{31031022111103} is an apocalyptic number.

31031022111103 is a deficient number, since it is larger than the sum of its proper divisors (4434409602817).

31031022111103 is a wasteful number, since it uses less digits than its factorization.

31031022111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175805517.

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

Adding to 31031022111103 its reverse (30111122013013), we get a palindrome (61142144124116).

The spelling of 31031022111103 in words is "thirty-one trillion, thirty-one billion, twenty-two million, one hundred eleven thousand, one hundred three".