11318642512 has 10 divisors (see below), whose sum is σ = 21929869898. Its totient is φ = 5659321248.

The previous prime is 11318642501. The next prime is 11318642557. The reversal of 11318642512 is 21524681311.

It can be written as a sum of positive squares in only one way, i.e., 10638684736 + 679957776 = 103144^2 + 26076^2 .

It is a super-2 number, since 2×11318642512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353707563 + ... + 353707594.

Almost surely, 2^11318642512 is an apocalyptic number.

It is an amenable number.

11318642512 is a deficient number, since it is larger than the sum of its proper divisors (10611227386).

11318642512 is an equidigital number, since it uses as much as digits as its factorization.

11318642512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707415165 (or 707415159 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The spelling of 11318642512 in words is "eleven billion, three hundred eighteen million, six hundred forty-two thousand, five hundred twelve".