12232041581 has 2 divisors, whose sum is σ = 12232041582. Its totient is φ = 12232041580.

The previous prime is 12232041533. The next prime is 12232041599. The reversal of 12232041581 is 18514023221.

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., 12212239081 + 19802500 = 110509^2 + 4450^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232041581 - 2⁶ = 12232041517 is a prime.

It is a super-2 number, since 2×12232041581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12232041281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116020790 + 6116020791.

It is an arithmetic number, because the mean of its divisors is an integer number (6116020791).

Almost surely, 2^12232041581 is an apocalyptic number.

It is an amenable number.

12232041581 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232041581 is an equidigital number, since it uses as much as digits as its factorization.

12232041581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 12232041581 in words is "twelve billion, two hundred thirty-two million, forty-one thousand, five hundred eighty-one".