101520331992 has 96 divisors (see below), whose sum is σ = 300141441600. Its totient is φ = 32059040544.

The previous prime is 101520331963. The next prime is 101520331993. The reversal of 101520331992 is 299133025101.

101520331992 is a `hidden beast` number, since 1 + 0 + 1 + 520 + 33 + 19 + 92 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101520331993) 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, 1337338 + ... + 1411209.

It is an arithmetic number, because the mean of its divisors is an integer number (3126473350).

Almost surely, 2^101520331992 is an apocalyptic number.

101520331992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101520331992 is an abundant number, since it is smaller than the sum of its proper divisors (198621109608).

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

101520331992 is a wasteful number, since it uses less digits than its factorization.

101520331992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748587 (or 2748571 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The spelling of 101520331992 in words is "one hundred one billion, five hundred twenty million, three hundred thirty-one thousand, nine hundred ninety-two".