120321321231 has 16 divisors (see below), whose sum is σ = 160653209600. Its totient is φ = 80101895328.

The previous prime is 120321321229. The next prime is 120321321251. The reversal of 120321321231 is 132123123021.

It is not a de Polignac number, because 120321321231 - 2¹ = 120321321229 is a prime.

It is a super-2 number, since 2×120321321231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120321321198 and 120321321207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120321321251) 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, 8468025 + ... + 8482221.

It is an arithmetic number, because the mean of its divisors is an integer number (10040825600).

Almost surely, 2^120321321231 is an apocalyptic number.

120321321231 is a deficient number, since it is larger than the sum of its proper divisors (40331888369).

120321321231 is a wasteful number, since it uses less digits than its factorization.

120321321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17958.

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

Adding to 120321321231 its reverse (132123123021), we get a palindrome (252444444252).

The spelling of 120321321231 in words is "one hundred twenty billion, three hundred twenty-one million, three hundred twenty-one thousand, two hundred thirty-one".