11312132232013 has 4 divisors (see below), whose sum is σ = 11312162155708. Its totient is φ = 11312102308320.

The previous prime is 11312132231999. The next prime is 11312132232083. The reversal of 11312132232013 is 31023223121311.

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 3129774959689 + 8182357272324 = 1769117^2 + 2860482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11312132232013 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 (11312132232083) 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, 14387448 + ... + 15153313.

It is an arithmetic number, because the mean of its divisors is an integer number (2828040538927).

Almost surely, 2^{11312132232013} is an apocalyptic number.

It is an amenable number.

11312132232013 is a deficient number, since it is larger than the sum of its proper divisors (29923695).

11312132232013 is an equidigital number, since it uses as much as digits as its factorization.

11312132232013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29923694.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 11312132232013 its reverse (31023223121311), we get a palindrome (42335355353324).

The spelling of 11312132232013 in words is "eleven trillion, three hundred twelve billion, one hundred thirty-two million, two hundred thirty-two thousand, thirteen".