312042112332440 has 128 divisors (see below), whose sum is σ = 837325722885120. Its totient is φ = 102328804723200.

The previous prime is 312042112332437. The next prime is 312042112332481. The reversal of 312042112332440 is 44233211240213.

It is a happy number.

It is a super-2 number, since 2×312042112332440² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312042112332397 and 312042112332406.

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, 119334230 + ... + 121921050.

It is an arithmetic number, because the mean of its divisors is an integer number (6541607210040).

Almost surely, 2^{312042112332440} is an apocalyptic number.

It is an amenable number.

312042112332440 is an abundant number, since it is smaller than the sum of its proper divisors (525283610552680).

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

312042112332440 is a wasteful number, since it uses less digits than its factorization.

312042112332440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605593 (or 2605589 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 312042112332440 its reverse (44233211240213), we get a palindrome (356275323572653).

The spelling of 312042112332440 in words is "three hundred twelve trillion, forty-two billion, one hundred twelve million, three hundred thirty-two thousand, four hundred forty".