312421243422 has 16 divisors (see below), whose sum is σ = 657728933760. Its totient is φ = 98659339992.

The previous prime is 312421243397. The next prime is 312421243423. The reversal of 312421243422 is 224342124213.

312421243422 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 312421243422.

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, 1370268498 + ... + 1370268725.

It is an arithmetic number, because the mean of its divisors is an integer number (41108058360).

Almost surely, 2^312421243422 is an apocalyptic number.

312421243422 is an abundant number, since it is smaller than the sum of its proper divisors (345307690338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312421243422 is a wasteful number, since it uses less digits than its factorization.

312421243422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740537247.

The product of its digits is 18432, while the sum is 30.

Adding to 312421243422 its reverse (224342124213), we get a palindrome (536763367635).

The spelling of 312421243422 in words is "three hundred twelve billion, four hundred twenty-one million, two hundred forty-three thousand, four hundred twenty-two".