321420004013402 has 16 divisors (see below), whose sum is σ = 554654765680512. Its totient is φ = 136839169162800.

The previous prime is 321420004013377. The next prime is 321420004013417. The reversal of 321420004013402 is 204310400024123.

It is a super-2 number, since 2×321420004013402² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 76021758533 + ... + 76021762760.

It is an arithmetic number, because the mean of its divisors is an integer number (34665922855032).

Almost surely, 2^{321420004013402} is an apocalyptic number.

321420004013402 is a deficient number, since it is larger than the sum of its proper divisors (233234761667110).

321420004013402 is a wasteful number, since it uses less digits than its factorization.

321420004013402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152043521453.

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

Adding to 321420004013402 its reverse (204310400024123), we get a palindrome (525730404037525).

The spelling of 321420004013402 in words is "three hundred twenty-one trillion, four hundred twenty billion, four million, thirteen thousand, four hundred two".