20443245037 has 2 divisors, whose sum is σ = 20443245038. Its totient is φ = 20443245036.

The previous prime is 20443245023. The next prime is 20443245041. The reversal of 20443245037 is 73054234402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20432129481 + 11115556 = 142941^2 + 3334^2 .

It is a cyclic number.

It is not a de Polignac number, because 20443245037 - 2²⁷ = 20309027309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20443244993 and 20443245011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20443345037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221622518 + 10221622519.

It is an arithmetic number, because the mean of its divisors is an integer number (10221622519).

Almost surely, 2^20443245037 is an apocalyptic number.

It is an amenable number.

20443245037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20443245037 is an equidigital number, since it uses as much as digits as its factorization.

20443245037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 34.

Adding to 20443245037 its reverse (73054234402), we get a palindrome (93497479439).

The spelling of 20443245037 in words is "twenty billion, four hundred forty-three million, two hundred forty-five thousand, thirty-seven".