31222301304 has 64 divisors (see below), whose sum is σ = 84168000000. Its totient is φ = 9619188480.

The previous prime is 31222301281. The next prime is 31222301351. The reversal of 31222301304 is 40310322213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816304 + ... + 853695.

It is an arithmetic number, because the mean of its divisors is an integer number (1315125000).

Almost surely, 2^31222301304 is an apocalyptic number.

It is an amenable number.

31222301304 is an abundant number, since it is smaller than the sum of its proper divisors (52945698696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31222301304 is a wasteful number, since it uses less digits than its factorization.

31222301304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670068 (or 1670064 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31222301304 its reverse (40310322213), we get a palindrome (71532623517).

The spelling of 31222301304 in words is "thirty-one billion, two hundred twenty-two million, three hundred one thousand, three hundred four".