20312232442120 has 32 divisors (see below), whose sum is σ = 45706384396800. Its totient is φ = 8124206505408.

The previous prime is 20312232442091. The next prime is 20312232442133. The reversal of 20312232442120 is 2124423221302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20972754 + ... + 21919873.

It is an arithmetic number, because the mean of its divisors is an integer number (1428324512400).

Almost surely, 2^{20312232442120} is an apocalyptic number.

20312232442120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312232442120 is an abundant number, since it is smaller than the sum of its proper divisors (25394151954680).

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

20312232442120 is a wasteful number, since it uses less digits than its factorization.

20312232442120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42904477 (or 42904473 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20312232442120 its reverse (2124423221302), we get a palindrome (22436655663422).

The spelling of 20312232442120 in words is "twenty trillion, three hundred twelve billion, two hundred thirty-two million, four hundred forty-two thousand, one hundred twenty".