23532919181 has 2 divisors, whose sum is σ = 23532919182. Its totient is φ = 23532919180.

The previous prime is 23532919121. The next prime is 23532919211. The reversal of 23532919181 is 18191923532.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21472213156 + 2060706025 = 146534^2 + 45395^2 .

It is a cyclic number.

It is not a de Polignac number, because 23532919181 - 2¹⁸ = 23532657037 is a prime.

It is a super-2 number, since 2×23532919181² (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 (23532919121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11766459590 + 11766459591.

It is an arithmetic number, because the mean of its divisors is an integer number (11766459591).

Almost surely, 2^23532919181 is an apocalyptic number.

It is an amenable number.

23532919181 is a deficient number, since it is larger than the sum of its proper divisors (1).

23532919181 is an equidigital number, since it uses as much as digits as its factorization.

23532919181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 44.

The spelling of 23532919181 in words is "twenty-three billion, five hundred thirty-two million, nine hundred nineteen thousand, one hundred eighty-one".