120939102021 has 16 divisors (see below), whose sum is σ = 168281473536. Its totient is φ = 77112164976.

The previous prime is 120939102013. The next prime is 120939102029. The reversal of 120939102021 is 120201939021.

It is an interprime number because it is at equal distance from previous prime (120939102013) and next prime (120939102029).

It is not a de Polignac number, because 120939102021 - 2³ = 120939102013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120939102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120939102029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574486 + ... + 756248.

It is an arithmetic number, because the mean of its divisors is an integer number (10517592096).

Almost surely, 2^120939102021 is an apocalyptic number.

It is an amenable number.

120939102021 is a deficient number, since it is larger than the sum of its proper divisors (47342371515).

120939102021 is a wasteful number, since it uses less digits than its factorization.

120939102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191432.

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 120939102021 in words is "one hundred twenty billion, nine hundred thirty-nine million, one hundred two thousand, twenty-one".