31244221104 has 40 divisors (see below), whose sum is σ = 80780929392. Its totient is φ = 10406135040.

The previous prime is 31244221081. The next prime is 31244221121. The reversal of 31244221104 is 40112244213.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 210087 + ... + 326534.

Almost surely, 2^31244221104 is an apocalyptic number.

It is an amenable number.

31244221104 is an abundant number, since it is smaller than the sum of its proper divisors (49536708288).

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

31244221104 is a wasteful number, since it uses less digits than its factorization.

31244221104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537845 (or 537839 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31244221104 its reverse (40112244213), we get a palindrome (71356465317).

The spelling of 31244221104 in words is "thirty-one billion, two hundred forty-four million, two hundred twenty-one thousand, one hundred four".