2112321439 has 2 divisors, whose sum is σ = 2112321440. Its totient is φ = 2112321438.

The previous prime is 2112321361. The next prime is 2112321443. The reversal of 2112321439 is 9341232112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2112321439 - 2¹⁹ = 2111797151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112321469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056160719 + 1056160720.

It is an arithmetic number, because the mean of its divisors is an integer number (1056160720).

Almost surely, 2^2112321439 is an apocalyptic number.

2112321439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112321439 is an equidigital number, since it uses as much as digits as its factorization.

2112321439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 2112321439 is about 45959.9982484769. The cubic root of 2112321439 is about 1283.0788187613.

The spelling of 2112321439 in words is "two billion, one hundred twelve million, three hundred twenty-one thousand, four hundred thirty-nine".