2109320743 has 2 divisors, whose sum is σ = 2109320744. Its totient is φ = 2109320742.

The previous prime is 2109320711. The next prime is 2109320761. The reversal of 2109320743 is 3470239012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2109320743 - 2⁵ = 2109320711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2109320443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054660371 + 1054660372.

It is an arithmetic number, because the mean of its divisors is an integer number (1054660372).

Almost surely, 2^2109320743 is an apocalyptic number.

2109320743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109320743 is an equidigital number, since it uses as much as digits as its factorization.

2109320743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 2109320743 is about 45927.3419979863. The cubic root of 2109320743 is about 1282.4709639826.

Adding to 2109320743 its reverse (3470239012), we get a palindrome (5579559755).

The spelling of 2109320743 in words is "two billion, one hundred nine million, three hundred twenty thousand, seven hundred forty-three".