11113202031 has 16 divisors (see below), whose sum is σ = 15574719744. Its totient is φ = 7034945984.

The previous prime is 11113201961. The next prime is 11113202041. The reversal of 11113202031 is 13020231111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11113202031 - 2¹⁴ = 11113185647 is a prime.

It is a super-2 number, since 2×11113202031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11113202031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113202041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578361 + ... + 597266.

It is an arithmetic number, because the mean of its divisors is an integer number (973419984).

Almost surely, 2^11113202031 is an apocalyptic number.

11113202031 is a deficient number, since it is larger than the sum of its proper divisors (4461517713).

11113202031 is a wasteful number, since it uses less digits than its factorization.

11113202031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175790.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11113202031 its reverse (13020231111), we get a palindrome (24133433142).

The spelling of 11113202031 in words is "eleven billion, one hundred thirteen million, two hundred two thousand, thirty-one".