31203113200103 has 32 divisors (see below), whose sum is σ = 35322655334400. Its totient is φ = 27367163366400.

The previous prime is 31203113200087. The next prime is 31203113200117. The reversal of 31203113200103 is 30100231130213.

It is not a de Polignac number, because 31203113200103 - 2⁴ = 31203113200087 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 (31203113206103) 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 31 ways as a sum of consecutive naturals, for example, 2961143 + ... + 8436503.

It is an arithmetic number, because the mean of its divisors is an integer number (1103832979200).

Almost surely, 2^{31203113200103} is an apocalyptic number.

31203113200103 is a deficient number, since it is larger than the sum of its proper divisors (4119542134297).

31203113200103 is a wasteful number, since it uses less digits than its factorization.

31203113200103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475663.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31203113200103 its reverse (30100231130213), we get a palindrome (61303344330316).

The spelling of 31203113200103 in words is "thirty-one trillion, two hundred three billion, one hundred thirteen million, two hundred thousand, one hundred three".