31321013321404 has 6 divisors (see below), whose sum is σ = 54811773312464. Its totient is φ = 15660506660700.

The previous prime is 31321013321383. The next prime is 31321013321449. The reversal of 31321013321404 is 40412331012313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3915126665172 + ... + 3915126665179.

Almost surely, 2^{31321013321404} is an apocalyptic number.

It is an amenable number.

31321013321404 is a deficient number, since it is larger than the sum of its proper divisors (23490759991060).

31321013321404 is a wasteful number, since it uses less digits than its factorization.

31321013321404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7830253330355 (or 7830253330353 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31321013321404 its reverse (40412331012313), we get a palindrome (71733344333717).

The spelling of 31321013321404 in words is "thirty-one trillion, three hundred twenty-one billion, thirteen million, three hundred twenty-one thousand, four hundred four".