2321505405252 has 48 divisors (see below), whose sum is σ = 6565873876800. Its totient is φ = 703486486080.

The previous prime is 2321505405239. The next prime is 2321505405257. The reversal of 2321505405252 is 2525045051232.

2321505405252 is a `hidden beast` number, since 2 + 3 + 2 + 15 + 0 + 540 + 52 + 52 = 666.

It is a super-2 number, since 2×2321505405252² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2321505405257) 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 15 ways as a sum of consecutive naturals, for example, 977063377 + ... + 977065752.

It is an arithmetic number, because the mean of its divisors is an integer number (136789039100).

Almost surely, 2^{2321505405252} is an apocalyptic number.

2321505405252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2321505405252 is an abundant number, since it is smaller than the sum of its proper divisors (4244368471548).

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

2321505405252 is a wasteful number, since it uses less digits than its factorization.

2321505405252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954129153 (or 1954129145 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 2321505405252 in words is "two trillion, three hundred twenty-one billion, five hundred five million, four hundred five thousand, two hundred fifty-two".