31322231130 has 64 divisors (see below), whose sum is σ = 75516883200. Its totient is φ = 8314515456.

The previous prime is 31322231071. The next prime is 31322231147. The reversal of 31322231130 is 3113222313.

It is a super-2 number, since 2×31322231130² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31322231097 and 31322231106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6700474 + ... + 6705146.

It is an arithmetic number, because the mean of its divisors is an integer number (1179951300).

Almost surely, 2^31322231130 is an apocalyptic number.

31322231130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31322231130 is an abundant number, since it is smaller than the sum of its proper divisors (44194652070).

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

31322231130 is a wasteful number, since it uses less digits than its factorization.

31322231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5655.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31322231130 its reverse (3113222313), we get a palindrome (34435453443).

The spelling of 31322231130 in words is "thirty-one billion, three hundred twenty-two million, two hundred thirty-one thousand, one hundred thirty".