231130033231 has 2 divisors, whose sum is σ = 231130033232. Its totient is φ = 231130033230.

The previous prime is 231130033181. The next prime is 231130033249. The reversal of 231130033231 is 132330031132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231130033231 - 2¹¹ = 231130031183 is a prime.

It is a super-2 number, since 2×231130033231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231130033261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115565016615 + 115565016616.

It is an arithmetic number, because the mean of its divisors is an integer number (115565016616).

Almost surely, 2^231130033231 is an apocalyptic number.

231130033231 is a deficient number, since it is larger than the sum of its proper divisors (1).

231130033231 is an equidigital number, since it uses as much as digits as its factorization.

231130033231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231130033231 its reverse (132330031132), we get a palindrome (363460064363).

The spelling of 231130033231 in words is "two hundred thirty-one billion, one hundred thirty million, thirty-three thousand, two hundred thirty-one".