11031311413 has 4 divisors (see below), whose sum is σ = 11195957920. Its totient is φ = 10866664908.

The previous prime is 11031311381. The next prime is 11031311437. The reversal of 11031311413 is 31411313011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11031311413 - 2⁵ = 11031311381 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 (11031311443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82323153 + ... + 82323286.

It is an arithmetic number, because the mean of its divisors is an integer number (2798989480).

Almost surely, 2^11031311413 is an apocalyptic number.

It is an amenable number.

11031311413 is a deficient number, since it is larger than the sum of its proper divisors (164646507).

11031311413 is an equidigital number, since it uses as much as digits as its factorization.

11031311413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164646506.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 11031311413 its reverse (31411313011), we get a palindrome (42442624424).

The spelling of 11031311413 in words is "eleven billion, thirty-one million, three hundred eleven thousand, four hundred thirteen".