31322121113130 has 32 divisors (see below), whose sum is σ = 76772518136064. Its totient is φ = 8174851467456.

The previous prime is 31322121112979. The next prime is 31322121113147. The reversal of 31322121113130 is 3131112122313.

It is a super-2 number, since 2×31322121113130² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31322121113130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11107133737 + ... + 11107136556.

It is an arithmetic number, because the mean of its divisors is an integer number (2399141191752).

Almost surely, 2^{31322121113130} is an apocalyptic number.

31322121113130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31322121113130 is an abundant number, since it is smaller than the sum of its proper divisors (45450397022934).

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

31322121113130 is a wasteful number, since it uses less digits than its factorization.

31322121113130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22214270350.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 31322121113130 its reverse (3131112122313), we get a palindrome (34453233235443).

The spelling of 31322121113130 in words is "thirty-one trillion, three hundred twenty-two billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred thirty".