2110391939 has 2 divisors, whose sum is σ = 2110391940. Its totient is φ = 2110391938.

The previous prime is 2110391897. The next prime is 2110391953. The reversal of 2110391939 is 9391930112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110391939 is a prime.

It is not a weakly prime, because it can be changed into another prime (2110391999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055195969 + 1055195970.

It is an arithmetic number, because the mean of its divisors is an integer number (1055195970).

Almost surely, 2^2110391939 is an apocalyptic number.

2110391939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110391939 is an equidigital number, since it uses as much as digits as its factorization.

2110391939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 2110391939 is about 45939.0023727116. The cubic root of 2110391939 is about 1282.6880236346.

The spelling of 2110391939 in words is "two billion, one hundred ten million, three hundred ninety-one thousand, nine hundred thirty-nine".