11531330361612 has 36 divisors (see below), whose sum is σ = 29162594220760. Its totient is φ = 3841936754112.

The previous prime is 11531330361539. The next prime is 11531330361619. The reversal of 11531330361612 is 21616303313511.

11531330361612 is a `hidden beast` number, since 1 + 1 + 5 + 3 + 1 + 3 + 3 + 0 + 36 + 1 + 612 = 666.

11531330361612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11531330361619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76591798 + ... + 76742205.

Almost surely, 2^{11531330361612} is an apocalyptic number.

11531330361612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11531330361612 is an abundant number, since it is smaller than the sum of its proper divisors (17631263859148).

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

11531330361612 is a wasteful number, since it uses less digits than its factorization.

11531330361612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153336102 (or 153336097 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The spelling of 11531330361612 in words is "eleven trillion, five hundred thirty-one billion, three hundred thirty million, three hundred sixty-one thousand, six hundred twelve".