115120533540 has 48 divisors (see below), whose sum is σ = 326221092288. Its totient is φ = 30328942464.

The previous prime is 115120533529. The next prime is 115120533553. The reversal of 115120533540 is 45335021511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 115120533498 and 115120533507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11553307 + ... + 11563266.

It is an arithmetic number, because the mean of its divisors is an integer number (6796272756).

Almost surely, 2^115120533540 is an apocalyptic number.

115120533540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115120533540 is an abundant number, since it is smaller than the sum of its proper divisors (211100558748).

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

115120533540 is a wasteful number, since it uses less digits than its factorization.

115120533540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23116668 (or 23116666 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 115120533540 in words is "one hundred fifteen billion, one hundred twenty million, five hundred thirty-three thousand, five hundred forty".