312141404323421 has 4 divisors (see below), whose sum is σ = 312141469380252. Its totient is φ = 312141339266592.

The previous prime is 312141404323379. The next prime is 312141404323453. The reversal of 312141404323421 is 124323404141213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 215054159325625 + 97087244997796 = 14664725^2 + 9853286^2 .

It is a cyclic number.

It is not a de Polignac number, because 312141404323421 - 2²⁶ = 312141337214557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312141404323481) 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, 24704096 + ... + 35136521.

It is an arithmetic number, because the mean of its divisors is an integer number (78035367345063).

Almost surely, 2^{312141404323421} is an apocalyptic number.

It is an amenable number.

312141404323421 is a deficient number, since it is larger than the sum of its proper divisors (65056831).

312141404323421 is an equidigital number, since it uses as much as digits as its factorization.

312141404323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65056830.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 312141404323421 its reverse (124323404141213), we get a palindrome (436464808464634).

The spelling of 312141404323421 in words is "three hundred twelve trillion, one hundred forty-one billion, four hundred four million, three hundred twenty-three thousand, four hundred twenty-one".