231045212 has 24 divisors (see below), whose sum is σ = 428217216. Its totient is φ = 108847728.

The previous prime is 231045193. The next prime is 231045257. The reversal of 231045212 is 212540132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12578 + ... + 24905.

It is an arithmetic number, because the mean of its divisors is an integer number (17842384).

Almost surely, 2^231045212 is an apocalyptic number.

It is an amenable number.

231045212 is a deficient number, since it is larger than the sum of its proper divisors (197172004).

231045212 is a wasteful number, since it uses less digits than its factorization.

231045212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37577 (or 37575 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 231045212 is about 15200.1714464015. The cubic root of 231045212 is about 613.6192718668.

Adding to 231045212 its reverse (212540132), we get a palindrome (443585344).

The spelling of 231045212 in words is "two hundred thirty-one million, forty-five thousand, two hundred twelve".