11203131013 has 16 divisors (see below), whose sum is σ = 11687929344. Its totient is φ = 10726318080.

The previous prime is 11203131001. The next prime is 11203131031. The reversal of 11203131013 is 31013130211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11203131013 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 (11203131113) 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, 3238981 + ... + 3242437.

It is an arithmetic number, because the mean of its divisors is an integer number (730495584).

Almost surely, 2^11203131013 is an apocalyptic number.

It is an amenable number.

11203131013 is a deficient number, since it is larger than the sum of its proper divisors (484798331).

11203131013 is a wasteful number, since it uses less digits than its factorization.

11203131013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11203131013 its reverse (31013130211), we get a palindrome (42216261224).

The spelling of 11203131013 in words is "eleven billion, two hundred three million, one hundred thirty-one thousand, thirteen".