402340321012 has 24 divisors (see below), whose sum is σ = 812201027904. Its totient is φ = 170820054912.

The previous prime is 402340321007. The next prime is 402340321129. The reversal of 402340321012 is 210123043204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67143253 + ... + 67149244.

It is an arithmetic number, because the mean of its divisors is an integer number (33841709496).

Almost surely, 2^402340321012 is an apocalyptic number.

It is an amenable number.

402340321012 is an abundant number, since it is smaller than the sum of its proper divisors (409860706892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402340321012 is a wasteful number, since it uses less digits than its factorization.

402340321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134292615 (or 134292613 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 402340321012 its reverse (210123043204), we get a palindrome (612463364216).

The spelling of 402340321012 in words is "four hundred two billion, three hundred forty million, three hundred twenty-one thousand, twelve".