231113421017 has 2 divisors, whose sum is σ = 231113421018. Its totient is φ = 231113421016.

The previous prime is 231113420977. The next prime is 231113421041. The reversal of 231113421017 is 710124311132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223808471056 + 7304949961 = 473084^2 + 85469^2 .

It is a cyclic number.

It is not a de Polignac number, because 231113421017 - 2⁶ = 231113420953 is a prime.

It is not a weakly prime, because it can be changed into another prime (231113481017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115556710508 + 115556710509.

It is an arithmetic number, because the mean of its divisors is an integer number (115556710509).

Almost surely, 2^231113421017 is an apocalyptic number.

It is an amenable number.

231113421017 is a deficient number, since it is larger than the sum of its proper divisors (1).

231113421017 is an equidigital number, since it uses as much as digits as its factorization.

231113421017 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 26.

Adding to 231113421017 its reverse (710124311132), we get a palindrome (941237732149).

The spelling of 231113421017 in words is "two hundred thirty-one billion, one hundred thirteen million, four hundred twenty-one thousand, seventeen".