11475130318821 has 80 divisors (see below), whose sum is σ = 19550210226624. Its totient is φ = 6644925559296.

The previous prime is 11475130318759. The next prime is 11475130318831. The reversal of 11475130318821 is 12881303157411.

11475130318821 is a `hidden beast` number, since 1 + 1 + 4 + 7 + 513 + 0 + 31 + 88 + 21 = 666.

It is not a de Polignac number, because 11475130318821 - 2⁷ = 11475130318693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11475130318831) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 95226810 + ... + 95347236.

Almost surely, 2^{11475130318821} is an apocalyptic number.

It is an amenable number.

11475130318821 is a deficient number, since it is larger than the sum of its proper divisors (8075079907803).

11475130318821 is a wasteful number, since it uses less digits than its factorization.

11475130318821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125792 (or 125783 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 11475130318821 in words is "eleven trillion, four hundred seventy-five billion, one hundred thirty million, three hundred eighteen thousand, eight hundred twenty-one".