11513101013 has 4 divisors (see below), whose sum is σ = 11730329388. Its totient is φ = 11295872640.

The previous prime is 11513101003. The next prime is 11513101037. The reversal of 11513101013 is 31010131511.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2923889329 + 8589211684 = 54073^2 + 92678^2 .

It is a cyclic number.

It is not a de Polignac number, because 11513101013 - 2⁴ = 11513100997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11513100982 and 11513101000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11513101003) 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, 108614108 + ... + 108614213.

It is an arithmetic number, because the mean of its divisors is an integer number (2932582347).

Almost surely, 2^11513101013 is an apocalyptic number.

It is an amenable number.

11513101013 is a deficient number, since it is larger than the sum of its proper divisors (217228375).

11513101013 is an equidigital number, since it uses as much as digits as its factorization.

11513101013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217228374.

The product of its (nonzero) digits is 45, while the sum is 17.

Adding to 11513101013 its reverse (31010131511), we get a palindrome (42523232524).

The spelling of 11513101013 in words is "eleven billion, five hundred thirteen million, one hundred one thousand, thirteen".