102120924 has 24 divisors (see below), whose sum is σ = 239603728. Its totient is φ = 33851520.

The previous prime is 102120911. The next prime is 102120929. The reversal of 102120924 is 429021201.

It is a super-2 number, since 2×102120924² = 20857366237227552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102120924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21337 + ... + 25680.

Almost surely, 2^102120924 is an apocalyptic number.

It is an amenable number.

102120924 is an abundant number, since it is smaller than the sum of its proper divisors (137482804).

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

102120924 is a wasteful number, since it uses less digits than its factorization.

102120924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47205 (or 47203 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 102120924 is about 10105.4897951559. The cubic root of 102120924 is about 467.4174393560.

It can be divided in two parts, 1021 and 20924, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 102120924 in words is "one hundred two million, one hundred twenty thousand, nine hundred twenty-four".