11531200516 has 48 divisors (see below), whose sum is σ = 23388805440. Its totient is φ = 4923918720.

The previous prime is 11531200507. The next prime is 11531200517. The reversal of 11531200516 is 61500213511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11531200517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74910 + ... + 169333.

It is an arithmetic number, because the mean of its divisors is an integer number (487266780).

Almost surely, 2^11531200516 is an apocalyptic number.

It is an amenable number.

11531200516 is an abundant number, since it is smaller than the sum of its proper divisors (11857604924).

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

11531200516 is a wasteful number, since it uses less digits than its factorization.

11531200516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244324 (or 244322 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 11531200516 in words is "eleven billion, five hundred thirty-one million, two hundred thousand, five hundred sixteen".