312421243421 has 8 divisors (see below), whose sum is σ = 357267051840. Its totient is φ = 267628985568.

The previous prime is 312421243397. The next prime is 312421243423. The reversal of 312421243421 is 124342124213.

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

It is not a de Polignac number, because 312421243421 - 2²² = 312417049117 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 (312421243423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13375136 + ... + 13398473.

It is an arithmetic number, because the mean of its divisors is an integer number (44658381480).

Almost surely, 2^312421243421 is an apocalyptic number.

It is an amenable number.

312421243421 is a deficient number, since it is larger than the sum of its proper divisors (44845808419).

312421243421 is a wasteful number, since it uses less digits than its factorization.

312421243421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26775283.

The product of its digits is 9216, while the sum is 29.

Adding to 312421243421 its reverse (124342124213), we get a palindrome (436763367634).

The spelling of 312421243421 in words is "three hundred twelve billion, four hundred twenty-one million, two hundred forty-three thousand, four hundred twenty-one".