31322212130 has 32 divisors (see below), whose sum is σ = 64179589248. Its totient is φ = 10894681600.

The previous prime is 31322212111. The next prime is 31322212147. The reversal of 31322212130 is 3121222313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6187631 + ... + 6192690.

It is an arithmetic number, because the mean of its divisors is an integer number (2005612164).

Almost surely, 2^31322212130 is an apocalyptic number.

31322212130 is an abundant number, since it is smaller than the sum of its proper divisors (32857377118).

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

31322212130 is a wasteful number, since it uses less digits than its factorization.

31322212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380362.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31322212130 its reverse (3121222313), we get a palindrome (34443434443).

The spelling of 31322212130 in words is "thirty-one billion, three hundred twenty-two million, two hundred twelve thousand, one hundred thirty".