11311511344 has 40 divisors (see below), whose sum is σ = 25054780320. Its totient is φ = 4846268928.

The previous prime is 11311511339. The next prime is 11311511369. The reversal of 11311511344 is 44311511311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388362 + ... + 416470.

It is an arithmetic number, because the mean of its divisors is an integer number (626369508).

Almost surely, 2^11311511344 is an apocalyptic number.

11311511344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11311511344 is an abundant number, since it is smaller than the sum of its proper divisors (13743268976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311511344 is a wasteful number, since it uses less digits than its factorization.

11311511344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31717 (or 31711 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The spelling of 11311511344 in words is "eleven billion, three hundred eleven million, five hundred eleven thousand, three hundred forty-four".