120331212321 has 32 divisors (see below), whose sum is σ = 167238288000. Its totient is φ = 76865564160.

The previous prime is 120331212317. The next prime is 120331212359. The reversal of 120331212321 is 123212133021.

It is not a de Polignac number, because 120331212321 - 2² = 120331212317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120331212821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17120610 + ... + 17127636.

It is an arithmetic number, because the mean of its divisors is an integer number (5226196500).

Almost surely, 2^120331212321 is an apocalyptic number.

It is an amenable number.

120331212321 is a deficient number, since it is larger than the sum of its proper divisors (46907075679).

120331212321 is a wasteful number, since it uses less digits than its factorization.

120331212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8529.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 120331212321 its reverse (123212133021), we get a palindrome (243543345342).

The spelling of 120331212321 in words is "one hundred twenty billion, three hundred thirty-one million, two hundred twelve thousand, three hundred twenty-one".