312440322322442 has 8 divisors (see below), whose sum is σ = 468665323958016. Its totient is φ = 156218547669772.

The previous prime is 312440322322411. The next prime is 312440322322463. The reversal of 312440322322442 is 244223223044213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 312440322322396 and 312440322322405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806503658 + ... + 806890965.

It is an arithmetic number, because the mean of its divisors is an integer number (58583165494752).

Almost surely, 2^{312440322322442} is an apocalyptic number.

312440322322442 is a deficient number, since it is larger than the sum of its proper divisors (156225001635574).

312440322322442 is a wasteful number, since it uses less digits than its factorization.

312440322322442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613491452.

The product of its (nonzero) digits is 442368, while the sum is 38.

Adding to 312440322322442 its reverse (244223223044213), we get a palindrome (556663545366655).

The spelling of 312440322322442 in words is "three hundred twelve trillion, four hundred forty billion, three hundred twenty-two million, three hundred twenty-two thousand, four hundred forty-two".