23315411015551 has 2 divisors, whose sum is σ = 23315411015552. Its totient is φ = 23315411015550.

The previous prime is 23315411015549. The next prime is 23315411015573. The reversal of 23315411015551 is 15551011451332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23315411015551 - 2¹ = 23315411015549 is a prime.

Together with 23315411015549, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23315411015551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23315411015651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11657705507775 + 11657705507776.

It is an arithmetic number, because the mean of its divisors is an integer number (11657705507776).

Almost surely, 2^{23315411015551} is an apocalyptic number.

23315411015551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23315411015551 is an equidigital number, since it uses as much as digits as its factorization.

23315411015551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 37.

Adding to 23315411015551 its reverse (15551011451332), we get a palindrome (38866422466883).

The spelling of 23315411015551 in words is "twenty-three trillion, three hundred fifteen billion, four hundred eleven million, fifteen thousand, five hundred fifty-one".