231101223127 has 2 divisors, whose sum is σ = 231101223128. Its totient is φ = 231101223126.

The previous prime is 231101223103. The next prime is 231101223139. The reversal of 231101223127 is 721322101132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231101223127 - 2⁷ = 231101222999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231101253127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115550611563 + 115550611564.

It is an arithmetic number, because the mean of its divisors is an integer number (115550611564).

Almost surely, 2^231101223127 is an apocalyptic number.

231101223127 is a deficient number, since it is larger than the sum of its proper divisors (1).

231101223127 is an equidigital number, since it uses as much as digits as its factorization.

231101223127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 231101223127 its reverse (721322101132), we get a palindrome (952423324259).

The spelling of 231101223127 in words is "two hundred thirty-one billion, one hundred one million, two hundred twenty-three thousand, one hundred twenty-seven".