421310320234 has 4 divisors (see below), whose sum is σ = 631965480354. Its totient is φ = 210655160116.

The previous prime is 421310320219. The next prime is 421310320243. The reversal of 421310320234 is 432023013124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 346396988025 + 74913332209 = 588555^2 + 273703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 421310320199 and 421310320208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105327580057 + ... + 105327580060.

Almost surely, 2^421310320234 is an apocalyptic number.

421310320234 is a deficient number, since it is larger than the sum of its proper divisors (210655160120).

421310320234 is a wasteful number, since it uses less digits than its factorization.

421310320234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210655160119.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 421310320234 its reverse (432023013124), we get a palindrome (853333333358).

The spelling of 421310320234 in words is "four hundred twenty-one billion, three hundred ten million, three hundred twenty thousand, two hundred thirty-four".