20413344047 has 2 divisors, whose sum is σ = 20413344048. Its totient is φ = 20413344046.

The previous prime is 20413343989. The next prime is 20413344053. The reversal of 20413344047 is 74044331402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20413344047 - 2¹⁰ = 20413343023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20413346047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206672023 + 10206672024.

It is an arithmetic number, because the mean of its divisors is an integer number (10206672024).

Almost surely, 2^20413344047 is an apocalyptic number.

20413344047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413344047 is an equidigital number, since it uses as much as digits as its factorization.

20413344047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 32.

Adding to 20413344047 its reverse (74044331402), we get a palindrome (94457675449).

The spelling of 20413344047 in words is "twenty billion, four hundred thirteen million, three hundred forty-four thousand, forty-seven".