312444312034340 has 24 divisors (see below), whose sum is σ = 656808784515072. Its totient is φ = 124849014481760.

The previous prime is 312444312034321. The next prime is 312444312034433. The reversal of 312444312034340 is 43430213444213.

It is a super-2 number, since 2×312444312034340² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312444312034294 and 312444312034303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8044375844 + ... + 8044414683.

It is an arithmetic number, because the mean of its divisors is an integer number (27367032688128).

Almost surely, 2^{312444312034340} is an apocalyptic number.

It is an amenable number.

312444312034340 is an abundant number, since it is smaller than the sum of its proper divisors (344364472480732).

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

312444312034340 is a wasteful number, since it uses less digits than its factorization.

312444312034340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16088791507 (or 16088791505 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 38.

Adding to 312444312034340 its reverse (43430213444213), we get a palindrome (355874525478553).

The spelling of 312444312034340 in words is "three hundred twelve trillion, four hundred forty-four billion, three hundred twelve million, thirty-four thousand, three hundred forty".