23011316551 has 2 divisors, whose sum is σ = 23011316552. Its totient is φ = 23011316550.

The previous prime is 23011316477. The next prime is 23011316557. The reversal of 23011316551 is 15561311032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23011316551 - 2⁹ = 23011316039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23011316557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11505658275 + 11505658276.

It is an arithmetic number, because the mean of its divisors is an integer number (11505658276).

Almost surely, 2^23011316551 is an apocalyptic number.

23011316551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23011316551 is an equidigital number, since it uses as much as digits as its factorization.

23011316551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 23011316551 its reverse (15561311032), we get a palindrome (38572627583).

The spelling of 23011316551 in words is "twenty-three billion, eleven million, three hundred sixteen thousand, five hundred fifty-one".