402531620103523 has 2 divisors, whose sum is σ = 402531620103524. Its totient is φ = 402531620103522.

The previous prime is 402531620103469. The next prime is 402531620103581. The reversal of 402531620103523 is 325301026135204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402531620103523 - 2¹⁷ = 402531619972451 is a prime.

It is not a weakly prime, because it can be changed into another prime (402531620106523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201265810051761 + 201265810051762.

It is an arithmetic number, because the mean of its divisors is an integer number (201265810051762).

Almost surely, 2^{402531620103523} is an apocalyptic number.

402531620103523 is a deficient number, since it is larger than the sum of its proper divisors (1).

402531620103523 is an equidigital number, since it uses as much as digits as its factorization.

402531620103523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 402531620103523 its reverse (325301026135204), we get a palindrome (727832646238727).

The spelling of 402531620103523 in words is "four hundred two trillion, five hundred thirty-one billion, six hundred twenty million, one hundred three thousand, five hundred twenty-three".