11513031255442 has 4 divisors (see below), whose sum is σ = 17269546883166. Its totient is φ = 5756515627720.

The previous prime is 11513031255371. The next prime is 11513031255469. The reversal of 11513031255442 is 24455213031511.

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

It can be written as a sum of positive squares in only one way, i.e., 8141771717641 + 3371259537801 = 2853379^2 + 1836099^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2878257813859 + ... + 2878257813862.

Almost surely, 2^{11513031255442} is an apocalyptic number.

11513031255442 is a deficient number, since it is larger than the sum of its proper divisors (5756515627724).

11513031255442 is an equidigital number, since it uses as much as digits as its factorization.

11513031255442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756515627723.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 11513031255442 its reverse (24455213031511), we get a palindrome (35968244286953).

The spelling of 11513031255442 in words is "eleven trillion, five hundred thirteen billion, thirty-one million, two hundred fifty-five thousand, four hundred forty-two".