23311315243 has 2 divisors, whose sum is σ = 23311315244. Its totient is φ = 23311315242.

The previous prime is 23311315231. The next prime is 23311315271. The reversal of 23311315243 is 34251311332.

It is an a-pointer prime, because the next prime (23311315271) can be obtained adding 23311315243 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23311315243 - 2⁵ = 23311315211 is a prime.

It is not a weakly prime, because it can be changed into another prime (23311315843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655657621 + 11655657622.

It is an arithmetic number, because the mean of its divisors is an integer number (11655657622).

Almost surely, 2^23311315243 is an apocalyptic number.

23311315243 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311315243 is an equidigital number, since it uses as much as digits as its factorization.

23311315243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

Adding to 23311315243 its reverse (34251311332), we get a palindrome (57562626575).

The spelling of 23311315243 in words is "twenty-three billion, three hundred eleven million, three hundred fifteen thousand, two hundred forty-three".