20983184107 has 2 divisors, whose sum is σ = 20983184108. Its totient is φ = 20983184106.

The previous prime is 20983184087. The next prime is 20983184113. The reversal of 20983184107 is 70148138902.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20983184107 is a prime.

It is not a weakly prime, because it can be changed into another prime (20983184137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10491592053 + 10491592054.

It is an arithmetic number, because the mean of its divisors is an integer number (10491592054).

Almost surely, 2^20983184107 is an apocalyptic number.

20983184107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20983184107 is an equidigital number, since it uses as much as digits as its factorization.

20983184107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 20983184107 in words is "twenty billion, nine hundred eighty-three million, one hundred eighty-four thousand, one hundred seven".