152421263306321 has 2 divisors, whose sum is σ = 152421263306322. Its totient is φ = 152421263306320.

The previous prime is 152421263306189. The next prime is 152421263306353. The reversal of 152421263306321 is 123603362124251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129808993890625 + 22612269415696 = 11393375^2 + 4755236^2 .

It is a cyclic number.

It is not a de Polignac number, because 152421263306321 - 2¹⁴ = 152421263289937 is a prime.

It is not a weakly prime, because it can be changed into another prime (152421263366321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76210631653160 + 76210631653161.

It is an arithmetic number, because the mean of its divisors is an integer number (76210631653161).

Almost surely, 2^{152421263306321} is an apocalyptic number.

It is an amenable number.

152421263306321 is a deficient number, since it is larger than the sum of its proper divisors (1).

152421263306321 is an equidigital number, since it uses as much as digits as its factorization.

152421263306321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 152421263306321 in words is "one hundred fifty-two trillion, four hundred twenty-one billion, two hundred sixty-three million, three hundred six thousand, three hundred twenty-one".