120515020 has 12 divisors (see below), whose sum is σ = 253081584. Its totient is φ = 48206000.

The previous prime is 120514991. The next prime is 120515027. The reversal of 120515020 is 20515021.

It is a junction number, because it is equal to n+sod(n) for n = 120514985 and 120515003.

It is not an unprimeable number, because it can be changed into a prime (120515027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3012856 + ... + 3012895.

It is an arithmetic number, because the mean of its divisors is an integer number (21090132).

Almost surely, 2^120515020 is an apocalyptic number.

120515020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120515020 is an abundant number, since it is smaller than the sum of its proper divisors (132566564).

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

120515020 is a wasteful number, since it uses less digits than its factorization.

120515020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025760 (or 6025758 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 120515020 is about 10977.9333209853. The cubic root of 120515020 is about 493.9470458517.

Subtracting from 120515020 its reverse (20515021), we obtain a palindrome (99999999).

It can be divided in two parts, 12051 and 5020, that added together give a palindrome (17071).

The spelling of 120515020 in words is "one hundred twenty million, five hundred fifteen thousand, twenty".