11513521440530 has 64 divisors (see below), whose sum is σ = 22325392212480. Its totient is φ = 4259366774784.

The previous prime is 11513521440527. The next prime is 11513521440571. The reversal of 11513521440530 is 3504412531511.

It is a happy number.

It is a super-2 number, since 2×11513521440530² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3422759 + ... + 5894261.

It is an arithmetic number, because the mean of its divisors is an integer number (348834253320).

Almost surely, 2^{11513521440530} is an apocalyptic number.

11513521440530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11513521440530 is a deficient number, since it is larger than the sum of its proper divisors (10811870771950).

11513521440530 is a wasteful number, since it uses less digits than its factorization.

11513521440530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472003.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 11513521440530 in words is "eleven trillion, five hundred thirteen billion, five hundred twenty-one million, four hundred forty thousand, five hundred thirty".