321023404402012 has 24 divisors (see below), whose sum is σ = 605007827499600. Its totient is φ = 148164114126336.

The previous prime is 321023404401983. The next prime is 321023404402033. The reversal of 321023404402012 is 210204404320123.

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, 3625164 + ... + 25596652.

It is an arithmetic number, because the mean of its divisors is an integer number (25208659479150).

Almost surely, 2^{321023404402012} is an apocalyptic number.

It is an amenable number.

321023404402012 is a deficient number, since it is larger than the sum of its proper divisors (283984423097588).

321023404402012 is a wasteful number, since it uses less digits than its factorization.

321023404402012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22252485 (or 22252483 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 321023404402012 its reverse (210204404320123), we get a palindrome (531227808722135).

The spelling of 321023404402012 in words is "three hundred twenty-one trillion, twenty-three billion, four hundred four million, four hundred two thousand, twelve".