23311213567 has 2 divisors, whose sum is σ = 23311213568. Its totient is φ = 23311213566.

The previous prime is 23311213511. The next prime is 23311213573. The reversal of 23311213567 is 76531211332.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23311213567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23311213067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655606783 + 11655606784.

It is an arithmetic number, because the mean of its divisors is an integer number (11655606784).

Almost surely, 2^23311213567 is an apocalyptic number.

23311213567 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311213567 is an equidigital number, since it uses as much as digits as its factorization.

23311213567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

Adding to 23311213567 its reverse (76531211332), we get a palindrome (99842424899).

The spelling of 23311213567 in words is "twenty-three billion, three hundred eleven million, two hundred thirteen thousand, five hundred sixty-seven".