11512513511303 has 16 divisors (see below), whose sum is σ = 13514631198720. Its totient is φ = 9599838024096.

The previous prime is 11512513511243. The next prime is 11512513511381. The reversal of 11512513511303 is 30311531521511.

It is a cyclic number.

It is not a de Polignac number, because 11512513511303 - 2⁸ = 11512513511047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11512513511303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512513541303) 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, 1208951 + ... + 4948392.

It is an arithmetic number, because the mean of its divisors is an integer number (844664449920).

Almost surely, 2^{11512513511303} is an apocalyptic number.

11512513511303 is a deficient number, since it is larger than the sum of its proper divisors (2002117687417).

11512513511303 is an equidigital number, since it uses as much as digits as its factorization.

11512513511303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6164606.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 11512513511303 in words is "eleven trillion, five hundred twelve billion, five hundred thirteen million, five hundred eleven thousand, three hundred three".