20247442023407 has 2 divisors, whose sum is σ = 20247442023408. Its totient is φ = 20247442023406.

The previous prime is 20247442023397. The next prime is 20247442023439. The reversal of 20247442023407 is 70432024474202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20247442023407 - 2⁴⁰ = 19147930395631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20247442023007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123721011703 + 10123721011704.

It is an arithmetic number, because the mean of its divisors is an integer number (10123721011704).

Almost surely, 2^{20247442023407} is an apocalyptic number.

20247442023407 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247442023407 is an equidigital number, since it uses as much as digits as its factorization.

20247442023407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 602112, while the sum is 41.

Adding to 20247442023407 its reverse (70432024474202), we get a palindrome (90679466497609).

The spelling of 20247442023407 in words is "twenty trillion, two hundred forty-seven billion, four hundred forty-two million, twenty-three thousand, four hundred seven".