23404111244257 has 2 divisors, whose sum is σ = 23404111244258. Its totient is φ = 23404111244256.

The previous prime is 23404111244221. The next prime is 23404111244299. The reversal of 23404111244257 is 75244211140432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13568385893841 + 9835725350416 = 3683529^2 + 3136196^2 .

It is a cyclic number.

It is not a de Polignac number, because 23404111244257 - 2¹⁵ = 23404111211489 is a prime.

It is not a weakly prime, because it can be changed into another prime (23404111244357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11702055622128 + 11702055622129.

It is an arithmetic number, because the mean of its divisors is an integer number (11702055622129).

Almost surely, 2^{23404111244257} is an apocalyptic number.

It is an amenable number.

23404111244257 is a deficient number, since it is larger than the sum of its proper divisors (1).

23404111244257 is an equidigital number, since it uses as much as digits as its factorization.

23404111244257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 40.

Adding to 23404111244257 its reverse (75244211140432), we get a palindrome (98648322384689).

The spelling of 23404111244257 in words is "twenty-three trillion, four hundred four billion, one hundred eleven million, two hundred forty-four thousand, two hundred fifty-seven".