20203203239 has 2 divisors, whose sum is σ = 20203203240. Its totient is φ = 20203203238.

The previous prime is 20203203179. The next prime is 20203203259. The reversal of 20203203239 is 93230230202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20203203239 is a prime.

It is a super-2 number, since 2×20203203239² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203203259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101601619 + 10101601620.

It is an arithmetic number, because the mean of its divisors is an integer number (10101601620).

Almost surely, 2^20203203239 is an apocalyptic number.

20203203239 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203203239 is an equidigital number, since it uses as much as digits as its factorization.

20203203239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The spelling of 20203203239 in words is "twenty billion, two hundred three million, two hundred three thousand, two hundred thirty-nine".