20424503101 has 2 divisors, whose sum is σ = 20424503102. Its totient is φ = 20424503100.

The previous prime is 20424503009. The next prime is 20424503107. The reversal of 20424503101 is 10130542402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19113339001 + 1311164100 = 138251^2 + 36210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20424503101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20424503107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212251550 + 10212251551.

It is an arithmetic number, because the mean of its divisors is an integer number (10212251551).

Almost surely, 2^20424503101 is an apocalyptic number.

It is an amenable number.

20424503101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424503101 is an equidigital number, since it uses as much as digits as its factorization.

20424503101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The spelling of 20424503101 in words is "twenty billion, four hundred twenty-four million, five hundred three thousand, one hundred one".