431343221012 has 24 divisors (see below), whose sum is σ = 850037083392. Its totient is φ = 189740419200.

The previous prime is 431343221011. The next prime is 431343221021. The reversal of 431343221012 is 210122343134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431343221011) 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, 158115653 + ... + 158118380.

It is an arithmetic number, because the mean of its divisors is an integer number (35418211808).

Almost surely, 2^431343221012 is an apocalyptic number.

It is an amenable number.

431343221012 is a deficient number, since it is larger than the sum of its proper divisors (418693862380).

431343221012 is a wasteful number, since it uses less digits than its factorization.

431343221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316234079 (or 316234077 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 431343221012 its reverse (210122343134), we get a palindrome (641465564146).

The spelling of 431343221012 in words is "four hundred thirty-one billion, three hundred forty-three million, two hundred twenty-one thousand, twelve".