120913287991452 has 108 divisors (see below), whose sum is σ = 351899992689336. Its totient is φ = 34711948664640.

The previous prime is 120913287991411. The next prime is 120913287991477. The reversal of 120913287991452 is 254199782319021.

120913287991452 is a `hidden beast` number, since 1 + 2 + 0 + 9 + 1 + 3 + 28 + 79 + 91 + 452 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 120913287991452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 422760903 + ... + 423046814.

It is an arithmetic number, because the mean of its divisors is an integer number (3258333265642).

Almost surely, 2^{120913287991452} is an apocalyptic number.

120913287991452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120913287991452 is an abundant number, since it is smaller than the sum of its proper divisors (230986704697884).

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

120913287991452 is a wasteful number, since it uses less digits than its factorization.

120913287991452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845807776 (or 845807752 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 120913287991452 in words is "one hundred twenty trillion, nine hundred thirteen billion, two hundred eighty-seven million, nine hundred ninety-one thousand, four hundred fifty-two".