31112404330 has 32 divisors (see below), whose sum is σ = 65563706880. Its totient is φ = 10406935680.

The previous prime is 31112404319. The next prime is 31112404339. The reversal of 31112404330 is 3340421113.

It is not an unprimeable number, because it can be changed into a prime (31112404339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5417410 + ... + 5423149.

It is an arithmetic number, because the mean of its divisors is an integer number (2048865840).

Almost surely, 2^31112404330 is an apocalyptic number.

31112404330 is an abundant number, since it is smaller than the sum of its proper divisors (34451302550).

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

31112404330 is a wasteful number, since it uses less digits than its factorization.

31112404330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10840614.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31112404330 its reverse (3340421113), we get a palindrome (34452825443).

The spelling of 31112404330 in words is "thirty-one billion, one hundred twelve million, four hundred four thousand, three hundred thirty".