312403313014321 has 4 divisors (see below), whose sum is σ = 312403547778112. Its totient is φ = 312403078250532.

The previous prime is 312403313014307. The next prime is 312403313014343. The reversal of 312403313014321 is 123410313304213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312403313014321 - 2⁷ = 312403313014193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312403313014301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115374381 + ... + 118051066.

It is an arithmetic number, because the mean of its divisors is an integer number (78100886944528).

Almost surely, 2^{312403313014321} is an apocalyptic number.

It is an amenable number.

312403313014321 is a deficient number, since it is larger than the sum of its proper divisors (234763791).

312403313014321 is a wasteful number, since it uses less digits than its factorization.

312403313014321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234763790.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 312403313014321 its reverse (123410313304213), we get a palindrome (435813626318534).

The spelling of 312403313014321 in words is "three hundred twelve trillion, four hundred three billion, three hundred thirteen million, fourteen thousand, three hundred twenty-one".