23153635181 has 2 divisors, whose sum is σ = 23153635182. Its totient is φ = 23153635180.

The previous prime is 23153635033. The next prime is 23153635189. The reversal of 23153635181 is 18153635132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16270278025 + 6883357156 = 127555^2 + 82966^2 .

It is a cyclic number.

It is not a de Polignac number, because 23153635181 - 2³⁴ = 5973765997 is a prime.

It is a super-2 number, since 2×23153635181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23153635189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11576817590 + 11576817591.

It is an arithmetic number, because the mean of its divisors is an integer number (11576817591).

Almost surely, 2^23153635181 is an apocalyptic number.

It is an amenable number.

23153635181 is a deficient number, since it is larger than the sum of its proper divisors (1).

23153635181 is an equidigital number, since it uses as much as digits as its factorization.

23153635181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The spelling of 23153635181 in words is "twenty-three billion, one hundred fifty-three million, six hundred thirty-five thousand, one hundred eighty-one".