31120130310112 has 192 divisors, whose sum is σ = 66016760140800. Its totient is φ = 14410684753920.

The previous prime is 31120130310079. The next prime is 31120130310121. The reversal of 31120130310112 is 21101303102113.

It is a self number, because there is not a number n which added to its sum of digits gives 31120130310112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1874359603 + ... + 1874376205.

It is an arithmetic number, because the mean of its divisors is an integer number (343837292400).

Almost surely, 2^{31120130310112} is an apocalyptic number.

31120130310112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31120130310112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33008380070400).

31120130310112 is an abundant number, since it is smaller than the sum of its proper divisors (34896629830688).

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

31120130310112 is a wasteful number, since it uses less digits than its factorization.

31120130310112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17449 (or 17441 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31120130310112 its reverse (21101303102113), we get a palindrome (52221433412225).

The spelling of 31120130310112 in words is "thirty-one trillion, one hundred twenty billion, one hundred thirty million, three hundred ten thousand, one hundred twelve".