31130122221310 has 384 divisors, whose sum is σ = 70777555107840. Its totient is φ = 9634899456000.

The previous prime is 31130122221283. The next prime is 31130122221329. The reversal of 31130122221310 is 1312222103113.

It is a super-2 number, since 2×31130122221310² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13008825474 + ... + 13008827866.

It is an arithmetic number, because the mean of its divisors is an integer number (184316549760).

Almost surely, 2^{31130122221310} is an apocalyptic number.

31130122221310 is an abundant number, since it is smaller than the sum of its proper divisors (39647432886530).

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

31130122221310 is a wasteful number, since it uses less digits than its factorization.

31130122221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692 (or 2655 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31130122221310 its reverse (1312222103113), we get a palindrome (32442344324423).

The spelling of 31130122221310 in words is "thirty-one trillion, one hundred thirty billion, one hundred twenty-two million, two hundred twenty-one thousand, three hundred ten".