231134031 has 48 divisors (see below), whose sum is σ = 367411200. Its totient is φ = 139454784.

The previous prime is 231134027. The next prime is 231134087. The reversal of 231134031 is 130431132.

It is not a de Polignac number, because 231134031 - 2² = 231134027 is a prime.

It is a super-2 number, since 2×231134031² = 106845880572617922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231133995 and 231134013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231134011) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 629610 + ... + 629976.

It is an arithmetic number, because the mean of its divisors is an integer number (7654400).

Almost surely, 2^231134031 is an apocalyptic number.

231134031 is a deficient number, since it is larger than the sum of its proper divisors (136277169).

231134031 is a wasteful number, since it uses less digits than its factorization.

231134031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 545 counting only the distinct ones).

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

The square root of 231134031 is about 15203.0928103462. The cubic root of 231134031 is about 613.6978914976.

Adding to 231134031 its reverse (130431132), we get a palindrome (361565163).

The spelling of 231134031 in words is "two hundred thirty-one million, one hundred thirty-four thousand, thirty-one".