321420004310402 has 16 divisors (see below), whose sum is σ = 493456178742912. Its totient is φ = 156949445938320.

The previous prime is 321420004310329. The next prime is 321420004310429. The reversal of 321420004310402 is 204013400024123.

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, 3708591968 + ... + 3708678635.

It is an arithmetic number, because the mean of its divisors is an integer number (30841011171432).

Almost surely, 2^{321420004310402} is an apocalyptic number.

321420004310402 is a deficient number, since it is larger than the sum of its proper divisors (172036174432510).

321420004310402 is a wasteful number, since it uses less digits than its factorization.

321420004310402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417271113.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 321420004310402 its reverse (204013400024123), we get a palindrome (525433404334525).

The spelling of 321420004310402 in words is "three hundred twenty-one trillion, four hundred twenty billion, four million, three hundred ten thousand, four hundred two".