12032999981 has 2 divisors, whose sum is σ = 12032999982. Its totient is φ = 12032999980.

The previous prime is 12032999977. The next prime is 12033000011. The reversal of 12032999981 is 18999923021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8221048900 + 3811951081 = 90670^2 + 61741^2 .

It is a cyclic number.

It is not a de Polignac number, because 12032999981 - 2² = 12032999977 is a prime.

It is a super-2 number, since 2×12032999981² (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 (12032999971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6016499990 + 6016499991.

It is an arithmetic number, because the mean of its divisors is an integer number (6016499991).

Almost surely, 2^12032999981 is an apocalyptic number.

It is an amenable number.

12032999981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12032999981 is an equidigital number, since it uses as much as digits as its factorization.

12032999981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 12032999981 in words is "twelve billion, thirty-two million, nine hundred ninety-nine thousand, nine hundred eighty-one".