71122020239 has 2 divisors, whose sum is σ = 71122020240. Its totient is φ = 71122020238.

The previous prime is 71122020187. The next prime is 71122020251. The reversal of 71122020239 is 93202022117.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71122020239 - 2³⁶ = 2402543503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71122020269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35561010119 + 35561010120.

It is an arithmetic number, because the mean of its divisors is an integer number (35561010120).

Almost surely, 2^71122020239 is an apocalyptic number.

71122020239 is a deficient number, since it is larger than the sum of its proper divisors (1).

71122020239 is an equidigital number, since it uses as much as digits as its factorization.

71122020239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 71122020239 in words is "seventy-one billion, one hundred twenty-two million, twenty thousand, two hundred thirty-nine".