31103220202989 has 16 divisors (see below), whose sum is σ = 47622155335680. Its totient is φ = 17858308250160.

The previous prime is 31103220202963. The next prime is 31103220202993. The reversal of 31103220202989 is 98920202230113.

It is a happy number.

It is not a de Polignac number, because 31103220202989 - 2¹⁵ = 31103220170221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31103220202989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103220202939) 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 15 ways as a sum of consecutive naturals, for example, 24803205277 + ... + 24803206530.

It is an arithmetic number, because the mean of its divisors is an integer number (2976384708480).

Almost surely, 2^{31103220202989} is an apocalyptic number.

It is an amenable number.

31103220202989 is a deficient number, since it is larger than the sum of its proper divisors (16518935132691).

31103220202989 is a wasteful number, since it uses less digits than its factorization.

31103220202989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49606411840.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 31103220202989 in words is "thirty-one trillion, one hundred three billion, two hundred twenty million, two hundred two thousand, nine hundred eighty-nine".