231130427 has 16 divisors (see below), whose sum is σ = 263831040. Its totient is φ = 200428800.

The previous prime is 231130423. The next prime is 231130441. The reversal of 231130427 is 724031132.

It is not a de Polignac number, because 231130427 - 2² = 231130423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (231130423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110027 + ... + 112107.

It is an arithmetic number, because the mean of its divisors is an integer number (16489440).

Almost surely, 2^231130427 is an apocalyptic number.

231130427 is a deficient number, since it is larger than the sum of its proper divisors (32700613).

231130427 is a wasteful number, since it uses less digits than its factorization.

231130427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 231130427 is about 15202.9742813701. The cubic root of 231130427 is about 613.6947017485.

Adding to 231130427 its reverse (724031132), we get a palindrome (955161559).

The spelling of 231130427 in words is "two hundred thirty-one million, one hundred thirty thousand, four hundred twenty-seven".