402321052200257 has 2 divisors, whose sum is σ = 402321052200258. Its totient is φ = 402321052200256.

The previous prime is 402321052200239. The next prime is 402321052200289. The reversal of 402321052200257 is 752002250123204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272467711507216 + 129853340693041 = 16506596^2 + 11395321^2 .

It is a cyclic number.

It is not a de Polignac number, because 402321052200257 - 2¹⁴ = 402321052183873 is a prime.

It is not a weakly prime, because it can be changed into another prime (402321052200857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201160526100128 + 201160526100129.

It is an arithmetic number, because the mean of its divisors is an integer number (201160526100129).

Almost surely, 2^{402321052200257} is an apocalyptic number.

It is an amenable number.

402321052200257 is a deficient number, since it is larger than the sum of its proper divisors (1).

402321052200257 is an equidigital number, since it uses as much as digits as its factorization.

402321052200257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 402321052200257 in words is "four hundred two trillion, three hundred twenty-one billion, fifty-two million, two hundred thousand, two hundred fifty-seven".