431213612 has 12 divisors (see below), whose sum is σ = 754784856. Its totient is φ = 215560800.

The previous prime is 431213603. The next prime is 431213659. The reversal of 431213612 is 216312134.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17987 + ... + 34437.

It is an arithmetic number, because the mean of its divisors is an integer number (62898738).

Almost surely, 2^431213612 is an apocalyptic number.

It is an amenable number.

431213612 is a deficient number, since it is larger than the sum of its proper divisors (323571244).

431213612 is a wasteful number, since it uses less digits than its factorization.

431213612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23008 (or 23006 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 431213612 is about 20765.6835187287. The cubic root of 431213612 is about 755.4936537361.

Adding to 431213612 its reverse (216312134), we get a palindrome (647525746).

The spelling of 431213612 in words is "four hundred thirty-one million, two hundred thirteen thousand, six hundred twelve".