31332222130 has 128 divisors (see below), whose sum is σ = 66134880000. Its totient is φ = 10561658880.

The previous prime is 31332222107. The next prime is 31332222139. The reversal of 31332222130 is 3122223313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (31332222139) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38729166 + ... + 38729974.

It is an arithmetic number, because the mean of its divisors is an integer number (516678750).

Almost surely, 2^31332222130 is an apocalyptic number.

31332222130 is an abundant number, since it is smaller than the sum of its proper divisors (34802657870).

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

31332222130 is a wasteful number, since it uses less digits than its factorization.

31332222130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31332222130 its reverse (3122223313), we get a palindrome (34454445443).

The spelling of 31332222130 in words is "thirty-one billion, three hundred thirty-two million, two hundred twenty-two thousand, one hundred thirty".