23115243331451 has 2 divisors, whose sum is σ = 23115243331452. Its totient is φ = 23115243331450.

The previous prime is 23115243331403. The next prime is 23115243331469. The reversal of 23115243331451 is 15413334251132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23115243331451 - 2¹⁸ = 23115243069307 is a prime.

It is not a weakly prime, because it can be changed into another prime (23115243331951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11557621665725 + 11557621665726.

It is an arithmetic number, because the mean of its divisors is an integer number (11557621665726).

Almost surely, 2^{23115243331451} is an apocalyptic number.

23115243331451 is a deficient number, since it is larger than the sum of its proper divisors (1).

23115243331451 is an equidigital number, since it uses as much as digits as its factorization.

23115243331451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

Adding to 23115243331451 its reverse (15413334251132), we get a palindrome (38528577582583).

The spelling of 23115243331451 in words is "twenty-three trillion, one hundred fifteen billion, two hundred forty-three million, three hundred thirty-one thousand, four hundred fifty-one".