23131134421427 has 2 divisors, whose sum is σ = 23131134421428. Its totient is φ = 23131134421426.

The previous prime is 23131134421393. The next prime is 23131134421453. The reversal of 23131134421427 is 72412443113132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23131134421427 is a prime.

It is not a weakly prime, because it can be changed into another prime (23131134421127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565567210713 + 11565567210714.

It is an arithmetic number, because the mean of its divisors is an integer number (11565567210714).

Almost surely, 2^{23131134421427} is an apocalyptic number.

23131134421427 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131134421427 is an equidigital number, since it uses as much as digits as its factorization.

23131134421427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

Adding to 23131134421427 its reverse (72412443113132), we get a palindrome (95543577534559).

The spelling of 23131134421427 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-four million, four hundred twenty-one thousand, four hundred twenty-seven".