115120213533 has 24 divisors (see below), whose sum is σ = 188500938080. Its totient is φ = 67114617120.

The previous prime is 115120213531. The next prime is 115120213561. The reversal of 115120213533 is 335312021511.

115120213533 is a `hidden beast` number, since 1 + 1 + 5 + 120 + 2 + 1 + 3 + 533 = 666.

It is not a de Polignac number, because 115120213533 - 2¹ = 115120213531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115120213497 and 115120213506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115120213531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25890763 + ... + 25895208.

Almost surely, 2^115120213533 is an apocalyptic number.

115120213533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

115120213533 is a deficient number, since it is larger than the sum of its proper divisors (73380724547).

115120213533 is a wasteful number, since it uses less digits than its factorization.

115120213533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51786009 (or 51786006 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 115120213533 in words is "one hundred fifteen billion, one hundred twenty million, two hundred thirteen thousand, five hundred thirty-three".