23112257767 has 2 divisors, whose sum is σ = 23112257768. Its totient is φ = 23112257766.

The previous prime is 23112257719. The next prime is 23112257789. The reversal of 23112257767 is 76775221132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23112257767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23112257717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556128883 + 11556128884.

It is an arithmetic number, because the mean of its divisors is an integer number (11556128884).

Almost surely, 2^23112257767 is an apocalyptic number.

23112257767 is a deficient number, since it is larger than the sum of its proper divisors (1).

23112257767 is an equidigital number, since it uses as much as digits as its factorization.

23112257767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246960, while the sum is 43.

Adding to 23112257767 its reverse (76775221132), we get a palindrome (99887478899).

The spelling of 23112257767 in words is "twenty-three billion, one hundred twelve million, two hundred fifty-seven thousand, seven hundred sixty-seven".