120021030 has 24 divisors (see below), whose sum is σ = 312054912. Its totient is φ = 32005584.

The previous prime is 120021023. The next prime is 120021049. The reversal of 120021030 is 30120021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 666694 + ... + 666873.

It is an arithmetic number, because the mean of its divisors is an integer number (13002288).

Almost surely, 2^120021030 is an apocalyptic number.

120021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120021030 is an abundant number, since it is smaller than the sum of its proper divisors (192033882).

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

120021030 is a wasteful number, since it uses less digits than its factorization.

120021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333580 (or 1333577 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 120021030 is about 10955.4109918341. The cubic root of 120021030 is about 493.2712267608.

Adding to 120021030 its reverse (30120021), we get a palindrome (150141051).

The spelling of 120021030 in words is "one hundred twenty million, twenty-one thousand, thirty".