20117471083 has 2 divisors, whose sum is σ = 20117471084. Its totient is φ = 20117471082.

The previous prime is 20117471081. The next prime is 20117471117. The reversal of 20117471083 is 38017471102.

It is an a-pointer prime, because the next prime (20117471117) can be obtained adding 20117471083 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20117471083 - 2¹ = 20117471081 is a prime.

Together with 20117471081, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20117471081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058735541 + 10058735542.

It is an arithmetic number, because the mean of its divisors is an integer number (10058735542).

Almost surely, 2^20117471083 is an apocalyptic number.

20117471083 is a deficient number, since it is larger than the sum of its proper divisors (1).

20117471083 is an equidigital number, since it uses as much as digits as its factorization.

20117471083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

The spelling of 20117471083 in words is "twenty billion, one hundred seventeen million, four hundred seventy-one thousand, eighty-three".