231130001 has 2 divisors, whose sum is σ = 231130002. Its totient is φ = 231130000.

The previous prime is 231129953. The next prime is 231130019. The reversal of 231130001 is 100031132.

231130001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230310976 + 819025 = 15176^2 + 905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231130001 is a prime.

It is not a weakly prime, because it can be changed into another prime (231130061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115565000 + 115565001.

It is an arithmetic number, because the mean of its divisors is an integer number (115565001).

Almost surely, 2^231130001 is an apocalyptic number.

It is an amenable number.

231130001 is a deficient number, since it is larger than the sum of its proper divisors (1).

231130001 is an equidigital number, since it uses as much as digits as its factorization.

231130001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 231130001 is about 15202.9602709472. The cubic root of 231130001 is about 613.6943247116.

Adding to 231130001 its reverse (100031132), we get a palindrome (331161133).

The spelling of 231130001 in words is "two hundred thirty-one million, one hundred thirty thousand, one".