312440042343430 has 32 divisors (see below), whose sum is σ = 562978533212928. Its totient is φ = 124845696492000.

The previous prime is 312440042343419. The next prime is 312440042343433. The reversal of 312440042343430 is 34343240044213.

It is a self number, because there is not a number n which added to its sum of digits gives 312440042343430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312440042343433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999808705 + ... + 1000121155.

It is an arithmetic number, because the mean of its divisors is an integer number (17593079162904).

Almost surely, 2^{312440042343430} is an apocalyptic number.

312440042343430 is a deficient number, since it is larger than the sum of its proper divisors (250538490869498).

312440042343430 is a wasteful number, since it uses less digits than its factorization.

312440042343430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416412.

The product of its (nonzero) digits is 331776, while the sum is 37.

Adding to 312440042343430 its reverse (34343240044213), we get a palindrome (346783282387643).

The spelling of 312440042343430 in words is "three hundred twelve trillion, four hundred forty billion, forty-two million, three hundred forty-three thousand, four hundred thirty".