11013013133131 has 4 divisors (see below), whose sum is σ = 11013661699264. Its totient is φ = 11012364567000.

The previous prime is 11013013133117. The next prime is 11013013133147. The reversal of 11013013133131 is 13133131031011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11013013133131 is a prime.

It is a super-2 number, since 2×11013013133131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11013013173131) 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, 324257595 + ... + 324291556.

It is an arithmetic number, because the mean of its divisors is an integer number (2753415424816).

Almost surely, 2^{11013013133131} is an apocalyptic number.

11013013133131 is a deficient number, since it is larger than the sum of its proper divisors (648566133).

11013013133131 is an equidigital number, since it uses as much as digits as its factorization.

11013013133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648566132.

The product of its (nonzero) digits is 243, while the sum is 22.

Adding to 11013013133131 its reverse (13133131031011), we get a palindrome (24146144164142).

The spelling of 11013013133131 in words is "eleven trillion, thirteen billion, thirteen million, one hundred thirty-three thousand, one hundred thirty-one".