231314031 has 24 divisors (see below), whose sum is σ = 362232416. Its totient is φ = 141393600.

The previous prime is 231314029. The next prime is 231314077. The reversal of 231314031 is 130413132.

231314031 is a `hidden beast` number, since 231 + 31 + 403 + 1 = 666.

It is not a de Polignac number, because 231314031 - 2¹ = 231314029 is a prime.

It is a super-2 number, since 2×231314031² = 107012361874937922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231313995 and 231314013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231314011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11121 + ... + 24213.

Almost surely, 2^231314031 is an apocalyptic number.

231314031 is a deficient number, since it is larger than the sum of its proper divisors (130918385).

231314031 is a wasteful number, since it uses less digits than its factorization.

231314031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13263 (or 13260 counting only the distinct ones).

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

The square root of 231314031 is about 15209.0115063406. The cubic root of 231314031 is about 613.8571597753.

Adding to 231314031 its reverse (130413132), we get a palindrome (361727163).

The spelling of 231314031 in words is "two hundred thirty-one million, three hundred fourteen thousand, thirty-one".