402343430213 has 4 divisors (see below), whose sum is σ = 403006270080. Its totient is φ = 401680590348.

The previous prime is 402343430129. The next prime is 402343430233. The reversal of 402343430213 is 312034343204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402343430213 - 2¹⁸ = 402343168069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402343430233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331419023 + ... + 331420236.

It is an arithmetic number, because the mean of its divisors is an integer number (100751567520).

Almost surely, 2^402343430213 is an apocalyptic number.

It is an amenable number.

402343430213 is a deficient number, since it is larger than the sum of its proper divisors (662839867).

402343430213 is an equidigital number, since it uses as much as digits as its factorization.

402343430213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662839866.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 402343430213 its reverse (312034343204), we get a palindrome (714377773417).

The spelling of 402343430213 in words is "four hundred two billion, three hundred forty-three million, four hundred thirty thousand, two hundred thirteen".