12444535001 has 2 divisors, whose sum is σ = 12444535002. Its totient is φ = 12444535000.

The previous prime is 12444534983. The next prime is 12444535039. The reversal of 12444535001 is 10053544421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9246745600 + 3197789401 = 96160^2 + 56549^2 .

It is a cyclic number.

It is not a de Polignac number, because 12444535001 - 2²² = 12440340697 is a prime.

It is a super-2 number, since 2×12444535001² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12444535801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222267500 + 6222267501.

It is an arithmetic number, because the mean of its divisors is an integer number (6222267501).

Almost surely, 2^12444535001 is an apocalyptic number.

It is an amenable number.

12444535001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444535001 is an equidigital number, since it uses as much as digits as its factorization.

12444535001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 12444535001 in words is "twelve billion, four hundred forty-four million, five hundred thirty-five thousand, one".