939231623117 has 2 divisors, whose sum is σ = 939231623118. Its totient is φ = 939231623116.

The previous prime is 939231623093. The next prime is 939231623147. The reversal of 939231623117 is 711326132939.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567748687081 + 371482936036 = 753491^2 + 609494^2 .

It is an emirp because it is prime and its reverse (711326132939) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-939231623117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (939231623147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469615811558 + 469615811559.

It is an arithmetic number, because the mean of its divisors is an integer number (469615811559).

Almost surely, 2^939231623117 is an apocalyptic number.

It is an amenable number.

939231623117 is a deficient number, since it is larger than the sum of its proper divisors (1).

939231623117 is an equidigital number, since it uses as much as digits as its factorization.

939231623117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 47.

The spelling of 939231623117 in words is "nine hundred thirty-nine billion, two hundred thirty-one million, six hundred twenty-three thousand, one hundred seventeen".