11513304040 has 32 divisors (see below), whose sum is σ = 29605639680. Its totient is φ = 3947418432.

The previous prime is 11513303953. The next prime is 11513304041. The reversal of 11513304040 is 4040331511.

It is a super-3 number, since 3×11513304040³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11513304041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20559192 + ... + 20559751.

It is an arithmetic number, because the mean of its divisors is an integer number (925176240).

Almost surely, 2^11513304040 is an apocalyptic number.

11513304040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11513304040 is an abundant number, since it is smaller than the sum of its proper divisors (18092335640).

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

11513304040 is a wasteful number, since it uses less digits than its factorization.

11513304040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41118961 (or 41118957 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 11513304040 its reverse (4040331511), we get a palindrome (15553635551).

The spelling of 11513304040 in words is "eleven billion, five hundred thirteen million, three hundred four thousand, forty".