321425550511402 has 4 divisors (see below), whose sum is σ = 482138325767106. Its totient is φ = 160712775255700.

The previous prime is 321425550511319. The next prime is 321425550511411. The reversal of 321425550511402 is 204115055524123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 253756648327081 + 67668902184321 = 15929741^2 + 8226111^2 .

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 as a sum of consecutive naturals, namely, 80356387627849 + ... + 80356387627852.

Almost surely, 2^{321425550511402} is an apocalyptic number.

321425550511402 is a deficient number, since it is larger than the sum of its proper divisors (160712775255704).

321425550511402 is a wasteful number, since it uses less digits than its factorization.

321425550511402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160712775255703.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 321425550511402 in words is "three hundred twenty-one trillion, four hundred twenty-five billion, five hundred fifty million, five hundred eleven thousand, four hundred two".