115380287100 has 108 divisors (see below), whose sum is σ = 389472608616. Its totient is φ = 28401298560.

The previous prime is 115380287051. The next prime is 115380287119. The reversal of 115380287100 is 1782083511.

115380287100 is a `hidden beast` number, since 11 + 538 + 0 + 2 + 8 + 7 + 100 = 666.

It is a super-2 number, since 2×115380287100² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4919082 + ... + 4942481.

Almost surely, 2^115380287100 is an apocalyptic number.

115380287100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115380287100 is an abundant number, since it is smaller than the sum of its proper divisors (274092321516).

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

115380287100 is a wasteful number, since it uses less digits than its factorization.

115380287100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9861596 (or 9861586 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The spelling of 115380287100 in words is "one hundred fifteen billion, three hundred eighty million, two hundred eighty-seven thousand, one hundred".