312403414210321 has 16 divisors (see below), whose sum is σ = 362100509337600. Its totient is φ = 263983615026768.

The previous prime is 312403414210313. The next prime is 312403414210343. The reversal of 312403414210321 is 123012414304213.

It is a happy number.

It is not a de Polignac number, because 312403414210321 - 2³ = 312403414210313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312403414210301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428258335 + ... + 428987188.

It is an arithmetic number, because the mean of its divisors is an integer number (22631281833600).

Almost surely, 2^{312403414210321} is an apocalyptic number.

It is an amenable number.

312403414210321 is a deficient number, since it is larger than the sum of its proper divisors (49697095127279).

312403414210321 is an equidigital number, since it uses as much as digits as its factorization.

312403414210321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857246268.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 312403414210321 its reverse (123012414304213), we get a palindrome (435415828514534).

The spelling of 312403414210321 in words is "three hundred twelve trillion, four hundred three billion, four hundred fourteen million, two hundred ten thousand, three hundred twenty-one".