23433155513 has 2 divisors, whose sum is σ = 23433155514. Its totient is φ = 23433155512.

The previous prime is 23433155497. The next prime is 23433155569. The reversal of 23433155513 is 31555133432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18329910544 + 5103244969 = 135388^2 + 71437^2 .

It is a cyclic number.

It is not a de Polignac number, because 23433155513 - 2⁴ = 23433155497 is a prime.

It is a super-2 number, since 2×23433155513² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23433155593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11716577756 + 11716577757.

It is an arithmetic number, because the mean of its divisors is an integer number (11716577757).

Almost surely, 2^23433155513 is an apocalyptic number.

It is an amenable number.

23433155513 is a deficient number, since it is larger than the sum of its proper divisors (1).

23433155513 is an equidigital number, since it uses as much as digits as its factorization.

23433155513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 35.

Adding to 23433155513 its reverse (31555133432), we get a palindrome (54988288945).

The spelling of 23433155513 in words is "twenty-three billion, four hundred thirty-three million, one hundred fifty-five thousand, five hundred thirteen".