12344500081 has 2 divisors, whose sum is σ = 12344500082. Its totient is φ = 12344500080.

The previous prime is 12344500061. The next prime is 12344500097. The reversal of 12344500081 is 18000544321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8567168481 + 3777331600 = 92559^2 + 61460^2 .

It is a cyclic number.

It is not a de Polignac number, because 12344500081 - 2⁷ = 12344499953 is a prime.

It is a super-2 number, since 2×12344500081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12344500061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172250040 + 6172250041.

It is an arithmetic number, because the mean of its divisors is an integer number (6172250041).

Almost surely, 2^12344500081 is an apocalyptic number.

It is an amenable number.

12344500081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12344500081 is an equidigital number, since it uses as much as digits as its factorization.

12344500081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 12344500081 in words is "twelve billion, three hundred forty-four million, five hundred thousand, eighty-one".