231230031 has 8 divisors (see below), whose sum is σ = 312649344. Its totient is φ = 151982040.

The previous prime is 231230009. The next prime is 231230117. The reversal of 231230031 is 130032132.

231230031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231230031 - 2⁶ = 231229967 is a prime.

It is a super-2 number, since 2×231230031² = 106934654472521922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231230731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542581 + ... + 543006.

It is an arithmetic number, because the mean of its divisors is an integer number (39081168).

Almost surely, 2^231230031 is an apocalyptic number.

231230031 is a deficient number, since it is larger than the sum of its proper divisors (81419313).

231230031 is a wasteful number, since it uses less digits than its factorization.

231230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085661.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231230031 is about 15206.2497348952. The cubic root of 231230031 is about 613.7828448651.

Adding to 231230031 its reverse (130032132), we get a palindrome (361262163).

The spelling of 231230031 in words is "two hundred thirty-one million, two hundred thirty thousand, thirty-one".