12442513541 has 2 divisors, whose sum is σ = 12442513542. Its totient is φ = 12442513540.

The previous prime is 12442513487. The next prime is 12442513553. The reversal of 12442513541 is 14531524421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11783102500 + 659411041 = 108550^2 + 25679^2 .

It is a cyclic number.

It is not a de Polignac number, because 12442513541 - 2²² = 12438319237 is a prime.

It is a super-2 number, since 2×12442513541² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12442513498 and 12442513507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12442513561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221256770 + 6221256771.

It is an arithmetic number, because the mean of its divisors is an integer number (6221256771).

Almost surely, 2^12442513541 is an apocalyptic number.

It is an amenable number.

12442513541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12442513541 is an equidigital number, since it uses as much as digits as its factorization.

12442513541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 32.

The spelling of 12442513541 in words is "twelve billion, four hundred forty-two million, five hundred thirteen thousand, five hundred forty-one".