20424503147 has 2 divisors, whose sum is σ = 20424503148. Its totient is φ = 20424503146.

The previous prime is 20424503129. The next prime is 20424503153. The reversal of 20424503147 is 74130542402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20424503147 - 2¹⁰ = 20424502123 is a prime.

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, 10212251573 + 10212251574.

It is an arithmetic number, because the mean of its divisors is an integer number (10212251574).

Almost surely, 2^20424503147 is an apocalyptic number.

20424503147 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424503147 is an equidigital number, since it uses as much as digits as its factorization.

20424503147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 20424503147 in words is "twenty billion, four hundred twenty-four million, five hundred three thousand, one hundred forty-seven".