231132130 has 16 divisors (see below), whose sum is σ = 417114360. Its totient is φ = 92213632.

The previous prime is 231132127. The next prime is 231132133. The reversal of 231132130 is 31231132.

It is an interprime number because it is at equal distance from previous prime (231132127) and next prime (231132133).

It can be written as a sum of positive squares in 4 ways, for example, as 185041609 + 46090521 = 13603^2 + 6789^2 .

It is not an unprimeable number, because it can be changed into a prime (231132133) 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, 25819 + ... + 33598.

Almost surely, 2^231132130 is an apocalyptic number.

231132130 is a deficient number, since it is larger than the sum of its proper divisors (185982230).

231132130 is a wasteful number, since it uses less digits than its factorization.

231132130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59813.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 231132130 is about 15203.0302900442. The cubic root of 231132130 is about 613.6962090064.

Adding to 231132130 its reverse (31231132), we get a palindrome (262363262).

The spelling of 231132130 in words is "two hundred thirty-one million, one hundred thirty-two thousand, one hundred thirty".