11939714321 has 2 divisors, whose sum is σ = 11939714322. Its totient is φ = 11939714320.

The previous prime is 11939714273. The next prime is 11939714327. The reversal of 11939714321 is 12341793911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11629249921 + 310464400 = 107839^2 + 17620^2 .

It is an emirp because it is prime and its reverse (12341793911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11939714321 is a prime.

It is not a weakly prime, because it can be changed into another prime (11939714327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5969857160 + 5969857161.

It is an arithmetic number, because the mean of its divisors is an integer number (5969857161).

Almost surely, 2^11939714321 is an apocalyptic number.

It is an amenable number.

11939714321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11939714321 is an equidigital number, since it uses as much as digits as its factorization.

11939714321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The spelling of 11939714321 in words is "eleven billion, nine hundred thirty-nine million, seven hundred fourteen thousand, three hundred twenty-one".