402421311371 has 2 divisors, whose sum is σ = 402421311372. Its totient is φ = 402421311370.

The previous prime is 402421311337. The next prime is 402421311379. The reversal of 402421311371 is 173113124204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402421311371 - 2¹⁸ = 402421049227 is a prime.

It is not a weakly prime, because it can be changed into another prime (402421311379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201210655685 + 201210655686.

It is an arithmetic number, because the mean of its divisors is an integer number (201210655686).

Almost surely, 2^402421311371 is an apocalyptic number.

402421311371 is a deficient number, since it is larger than the sum of its proper divisors (1).

402421311371 is an equidigital number, since it uses as much as digits as its factorization.

402421311371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 402421311371 its reverse (173113124204), we get a palindrome (575534435575).

The spelling of 402421311371 in words is "four hundred two billion, four hundred twenty-one million, three hundred eleven thousand, three hundred seventy-one".