231030101231 has 2 divisors, whose sum is σ = 231030101232. Its totient is φ = 231030101230.

The previous prime is 231030101153. The next prime is 231030101233. The reversal of 231030101231 is 132101030132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231030101231 - 2¹⁰ = 231030100207 is a prime.

It is a super-2 number, since 2×231030101231² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 231030101233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231030101233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115515050615 + 115515050616.

It is an arithmetic number, because the mean of its divisors is an integer number (115515050616).

Almost surely, 2^231030101231 is an apocalyptic number.

231030101231 is a deficient number, since it is larger than the sum of its proper divisors (1).

231030101231 is an equidigital number, since it uses as much as digits as its factorization.

231030101231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 231030101231 its reverse (132101030132), we get a palindrome (363131131363).

The spelling of 231030101231 in words is "two hundred thirty-one billion, thirty million, one hundred one thousand, two hundred thirty-one".