201223116439 has 2 divisors, whose sum is σ = 201223116440. Its totient is φ = 201223116438.

The previous prime is 201223116343. The next prime is 201223116443. The reversal of 201223116439 is 934611322102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201223116439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201223114439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100611558219 + 100611558220.

It is an arithmetic number, because the mean of its divisors is an integer number (100611558220).

Almost surely, 2^201223116439 is an apocalyptic number.

201223116439 is a deficient number, since it is larger than the sum of its proper divisors (1).

201223116439 is an equidigital number, since it uses as much as digits as its factorization.

201223116439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 201223116439 in words is "two hundred one billion, two hundred twenty-three million, one hundred sixteen thousand, four hundred thirty-nine".