2321299537920 has 1216 divisors, whose sum is σ = 9240872947200. Its totient is φ = 548111646720.

The previous prime is 2321299537871. The next prime is 2321299537933. The reversal of 2321299537920 is 297359921232.

2321299537920 is a `hidden beast` number, since 2 + 3 + 2 + 12 + 9 + 9 + 537 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26082017236 + ... + 26082017324.

Almost surely, 2^{2321299537920} is an apocalyptic number.

2321299537920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321299537920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4620436473600).

2321299537920 is an abundant number, since it is smaller than the sum of its proper divisors (6919573409280).

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

2321299537920 is an frugal number, since it uses more digits than its factorization.

2321299537920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 2321299537920 in words is "two trillion, three hundred twenty-one billion, two hundred ninety-nine million, five hundred thirty-seven thousand, nine hundred twenty".