431310220242 has 32 divisors (see below), whose sum is σ = 996395805504. Its totient is φ = 123011827200.

The previous prime is 431310220193. The next prime is 431310220267. The reversal of 431310220242 is 242022013134.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192204859 + ... + 192207102.

It is an arithmetic number, because the mean of its divisors is an integer number (31137368922).

Almost surely, 2^431310220242 is an apocalyptic number.

431310220242 is an abundant number, since it is smaller than the sum of its proper divisors (565085585262).

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

431310220242 is a wasteful number, since it uses less digits than its factorization.

431310220242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384411994.

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

Adding to 431310220242 its reverse (242022013134), we get a palindrome (673332233376).

The spelling of 431310220242 in words is "four hundred thirty-one billion, three hundred ten million, two hundred twenty thousand, two hundred forty-two".