23111320033 has 2 divisors, whose sum is σ = 23111320034. Its totient is φ = 23111320032.

The previous prime is 23111320013. The next prime is 23111320049. The reversal of 23111320033 is 33002311132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22598206929 + 513113104 = 150327^2 + 22652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23111320033 is a prime.

It is a super-2 number, since 2×23111320033² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23111320003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11555660016 + 11555660017.

It is an arithmetic number, because the mean of its divisors is an integer number (11555660017).

Almost surely, 2^23111320033 is an apocalyptic number.

It is an amenable number.

23111320033 is a deficient number, since it is larger than the sum of its proper divisors (1).

23111320033 is an equidigital number, since it uses as much as digits as its factorization.

23111320033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 23111320033 its reverse (33002311132), we get a palindrome (56113631165).

The spelling of 23111320033 in words is "twenty-three billion, one hundred eleven million, three hundred twenty thousand, thirty-three".