431304420042 has 24 divisors (see below), whose sum is σ = 934509457440. Its totient is φ = 143765594280.

The previous prime is 431304420023. The next prime is 431304420049. The reversal of 431304420042 is 240024403134.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 431304419988 and 431304420015.

It is not an unprimeable number, because it can be changed into a prime (431304420049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1028817 + ... + 1386027.

It is an arithmetic number, because the mean of its divisors is an integer number (38937894060).

Almost surely, 2^431304420042 is an apocalyptic number.

431304420042 is an abundant number, since it is smaller than the sum of its proper divisors (503205037398).

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

431304420042 is a wasteful number, since it uses less digits than its factorization.

431304420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424298 (or 424295 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 431304420042 its reverse (240024403134), we get a palindrome (671328823176).

The spelling of 431304420042 in words is "four hundred thirty-one billion, three hundred four million, four hundred twenty thousand, forty-two".