101002920 has 32 divisors (see below), whose sum is σ = 303009120. Its totient is φ = 26934080.

The previous prime is 101002919. The next prime is 101002927. The reversal of 101002920 is 29200101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101002920.

It is not an unprimeable number, because it can be changed into a prime (101002927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420726 + ... + 420965.

It is an arithmetic number, because the mean of its divisors is an integer number (9469035).

Almost surely, 2^101002920 is an apocalyptic number.

101002920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101002920 is an abundant number, since it is smaller than the sum of its proper divisors (202006200).

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

101002920 is a wasteful number, since it uses less digits than its factorization.

101002920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841705 (or 841701 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 101002920 is about 10050.0208955007. The cubic root of 101002920 is about 465.7054386803.

The spelling of 101002920 in words is "one hundred one million, two thousand, nine hundred twenty".