402321341221297 has 2 divisors, whose sum is σ = 402321341221298. Its totient is φ = 402321341221296.

The previous prime is 402321341221159. The next prime is 402321341221339. The reversal of 402321341221297 is 792122143123204.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399508311191616 + 2813030029681 = 19987704^2 + 1677209^2 .

It is a cyclic number.

It is not a de Polignac number, because 402321341221297 - 2⁴³ = 393525248199089 is a prime.

It is not a weakly prime, because it can be changed into another prime (402321341021297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201160670610648 + 201160670610649.

It is an arithmetic number, because the mean of its divisors is an integer number (201160670610649).

Almost surely, 2^{402321341221297} is an apocalyptic number.

It is an amenable number.

402321341221297 is a deficient number, since it is larger than the sum of its proper divisors (1).

402321341221297 is an equidigital number, since it uses as much as digits as its factorization.

402321341221297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 402321341221297 in words is "four hundred two trillion, three hundred twenty-one billion, three hundred forty-one million, two hundred twenty-one thousand, two hundred ninety-seven".