31122334404 has 96 divisors (see below), whose sum is σ = 93477699840. Its totient is φ = 8770270464.

The previous prime is 31122334391. The next prime is 31122334409. The reversal of 31122334404 is 40443322113.

31122334404 is a `hidden beast` number, since 3 + 1 + 1 + 223 + 34 + 404 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31122334409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226779 + ... + 337154.

It is an arithmetic number, because the mean of its divisors is an integer number (973726040).

Almost surely, 2^31122334404 is an apocalyptic number.

It is an amenable number.

31122334404 is an abundant number, since it is smaller than the sum of its proper divisors (62355365436).

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

31122334404 is a wasteful number, since it uses less digits than its factorization.

31122334404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564026 (or 564018 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 31122334404 its reverse (40443322113), we get a palindrome (71565656517).

The spelling of 31122334404 in words is "thirty-one billion, one hundred twenty-two million, three hundred thirty-four thousand, four hundred four".