2113103031 has 24 divisors (see below), whose sum is σ = 3202320240. Its totient is φ = 1231922304.

The previous prime is 2113103029. The next prime is 2113103039. The reversal of 2113103031 is 1303013112.

It is not a de Polignac number, because 2113103031 - 2¹ = 2113103029 is a prime.

It is a super-2 number, since 2×2113103031² = 8930408839242773922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2113103031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113103039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60966 + ... + 89123.

It is an arithmetic number, because the mean of its divisors is an integer number (133430010).

Almost surely, 2^2113103031 is an apocalyptic number.

2113103031 is a deficient number, since it is larger than the sum of its proper divisors (1089217209).

2113103031 is a wasteful number, since it uses less digits than its factorization.

2113103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150143 (or 150124 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2113103031 is about 45968.5004214843. The cubic root of 2113103031 is about 1283.2370523296.

Adding to 2113103031 its reverse (1303013112), we get a palindrome (3416116143).

The spelling of 2113103031 in words is "two billion, one hundred thirteen million, one hundred three thousand, thirty-one".