120231021 has 16 divisors (see below), whose sum is σ = 170731584. Its totient is φ = 74997504.

The previous prime is 120230963. The next prime is 120231043. The reversal of 120231021 is 120132021.

It is not a de Polignac number, because 120231021 - 2¹¹ = 120228973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120230988 and 120231006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231091) 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, 2010 + ... + 15636.

It is an arithmetic number, because the mean of its divisors is an integer number (10670724).

Almost surely, 2^120231021 is an apocalyptic number.

It is an amenable number.

120231021 is a deficient number, since it is larger than the sum of its proper divisors (50500563).

120231021 is a wasteful number, since it uses less digits than its factorization.

120231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13820.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 120231021 is about 10964.9906976705. The cubic root of 120231021 is about 493.5587379491.

Adding to 120231021 its reverse (120132021), we get a palindrome (240363042).

It can be divided in two parts, 1202 and 31021, that added together give a palindrome (32223).

The spelling of 120231021 in words is "one hundred twenty million, two hundred thirty-one thousand, twenty-one".