312001230231 has 12 divisors (see below), whose sum is σ = 477178352352. Its totient is φ = 195765477696.

The previous prime is 312001230227. The next prime is 312001230253. The reversal of 312001230231 is 132032100213.

312001230231 is a `hidden beast` number, since 3 + 1 + 200 + 1 + 230 + 231 = 666.

It is not a de Polignac number, because 312001230231 - 2² = 312001230227 is a prime.

It is a super-2 number, since 2×312001230231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312001230031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1019611711 + ... + 1019612016.

It is an arithmetic number, because the mean of its divisors is an integer number (39764862696).

Almost surely, 2^312001230231 is an apocalyptic number.

312001230231 is a deficient number, since it is larger than the sum of its proper divisors (165177122121).

312001230231 is a wasteful number, since it uses less digits than its factorization.

312001230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039223750 (or 2039223747 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 312001230231 its reverse (132032100213), we get a palindrome (444033330444).

The spelling of 312001230231 in words is "three hundred twelve billion, one million, two hundred thirty thousand, two hundred thirty-one".