231420412 has 12 divisors (see below), whose sum is σ = 411030760. Its totient is φ = 113983056.

The previous prime is 231420401. The next prime is 231420421. The reversal of 231420412 is 214024132.

It is a self number, because there is not a number n which added to its sum of digits gives 231420412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431487 + ... + 432022.

Almost surely, 2^231420412 is an apocalyptic number.

It is an amenable number.

231420412 is a deficient number, since it is larger than the sum of its proper divisors (179610348).

231420412 is a wasteful number, since it uses less digits than its factorization.

231420412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863580 (or 863578 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 231420412 is about 15212.5084059139. The cubic root of 231420412 is about 613.9512493699.

Adding to 231420412 its reverse (214024132), we get a palindrome (445444544).

The spelling of 231420412 in words is "two hundred thirty-one million, four hundred twenty thousand, four hundred twelve".