2321561422420 has 48 divisors (see below), whose sum is σ = 4891371383808. Its totient is φ = 925564273920.

The previous prime is 2321561422417. The next prime is 2321561422429. The reversal of 2321561422420 is 242241651232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321561422429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7422109 + ... + 7728571.

It is an arithmetic number, because the mean of its divisors is an integer number (101903570496).

Almost surely, 2^{2321561422420} is an apocalyptic number.

2321561422420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321561422420 is an abundant number, since it is smaller than the sum of its proper divisors (2569809961388).

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

2321561422420 is a wasteful number, since it uses less digits than its factorization.

2321561422420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307720 (or 307718 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 2321561422420 in words is "two trillion, three hundred twenty-one billion, five hundred sixty-one million, four hundred twenty-two thousand, four hundred twenty".