31612122013344 has 48 divisors (see below), whose sum is σ = 83035253915712. Its totient is φ = 10530588781568.

The previous prime is 31612122013333. The next prime is 31612122013399. The reversal of 31612122013344 is 44331022121613.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×31612122013344² (a number of 28 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 105869244 + ... + 106167419.

It is an arithmetic number, because the mean of its divisors is an integer number (1729901123244).

Almost surely, 2^{31612122013344} is an apocalyptic number.

It is an amenable number.

31612122013344 is an abundant number, since it is smaller than the sum of its proper divisors (51423131902368).

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

31612122013344 is a wasteful number, since it uses less digits than its factorization.

31612122013344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212038229 (or 212038221 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 31612122013344 its reverse (44331022121613), we get a palindrome (75943144134957).

The spelling of 31612122013344 in words is "thirty-one trillion, six hundred twelve billion, one hundred twenty-two million, thirteen thousand, three hundred forty-four".