20445411043 has 2 divisors, whose sum is σ = 20445411044. Its totient is φ = 20445411042.

The previous prime is 20445411013. The next prime is 20445411061. The reversal of 20445411043 is 34011454402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20445411043 - 2⁵ = 20445411011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20445411013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10222705521 + 10222705522.

It is an arithmetic number, because the mean of its divisors is an integer number (10222705522).

Almost surely, 2^20445411043 is an apocalyptic number.

20445411043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20445411043 is an equidigital number, since it uses as much as digits as its factorization.

20445411043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 20445411043 its reverse (34011454402), we get a palindrome (54456865445).

The spelling of 20445411043 in words is "twenty billion, four hundred forty-five million, four hundred eleven thousand, forty-three".