20000983139 has 2 divisors, whose sum is σ = 20000983140. Its totient is φ = 20000983138.

The previous prime is 20000983133. The next prime is 20000983159. The reversal of 20000983139 is 93138900002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20000983139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000983099 and 20000983108.

It is not a weakly prime, because it can be changed into another prime (20000983133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000491569 + 10000491570.

It is an arithmetic number, because the mean of its divisors is an integer number (10000491570).

Almost surely, 2^20000983139 is an apocalyptic number.

20000983139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000983139 is an equidigital number, since it uses as much as digits as its factorization.

20000983139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 20000983139 in words is "twenty billion, nine hundred eighty-three thousand, one hundred thirty-nine".