310312220442 has 48 divisors (see below), whose sum is σ = 764418591360. Its totient is φ = 83445301632.

The previous prime is 310312220431. The next prime is 310312220447. The reversal of 310312220442 is 244022213013.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (310312220447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31038642 + ... + 31048637.

It is an arithmetic number, because the mean of its divisors is an integer number (15925387320).

Almost surely, 2^310312220442 is an apocalyptic number.

310312220442 is an abundant number, since it is smaller than the sum of its proper divisors (454106370918).

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

310312220442 is a wasteful number, since it uses less digits than its factorization.

310312220442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62087315 (or 62087308 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 310312220442 its reverse (244022213013), we get a palindrome (554334433455).

The spelling of 310312220442 in words is "three hundred ten billion, three hundred twelve million, two hundred twenty thousand, four hundred forty-two".