1231050118427 has 2 divisors, whose sum is σ = 1231050118428. Its totient is φ = 1231050118426.

The previous prime is 1231050118421. The next prime is 1231050118429. The reversal of 1231050118427 is 7248110501321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231050118427 - 2¹⁰ = 1231050117403 is a prime.

Together with 1231050118429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1231050118421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615525059213 + 615525059214.

It is an arithmetic number, because the mean of its divisors is an integer number (615525059214).

Almost surely, 2^{1231050118427} is an apocalyptic number.

1231050118427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231050118427 is an equidigital number, since it uses as much as digits as its factorization.

1231050118427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 35.

Adding to 1231050118427 its reverse (7248110501321), we get a palindrome (8479160619748).

The spelling of 1231050118427 in words is "one trillion, two hundred thirty-one billion, fifty million, one hundred eighteen thousand, four hundred twenty-seven".