120231331021 has 8 divisors (see below), whose sum is σ = 123522613344. Its totient is φ = 116942248080.

The previous prime is 120231331013. The next prime is 120231331027. The reversal of 120231331021 is 120133132021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120231331021 - 2³ = 120231331013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120231331021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231331027) 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, 438715 + ... + 657976.

It is an arithmetic number, because the mean of its divisors is an integer number (15440326668).

Almost surely, 2^120231331021 is an apocalyptic number.

It is an amenable number.

120231331021 is a deficient number, since it is larger than the sum of its proper divisors (3291282323).

120231331021 is a wasteful number, since it uses less digits than its factorization.

120231331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099691.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 120231331021 its reverse (120133132021), we get a palindrome (240364463042).

The spelling of 120231331021 in words is "one hundred twenty billion, two hundred thirty-one million, three hundred thirty-one thousand, twenty-one".