2111949703 has 2 divisors, whose sum is σ = 2111949704. Its totient is φ = 2111949702.

The previous prime is 2111949689. The next prime is 2111949709. The reversal of 2111949703 is 3079491112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111949703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111949709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055974851 + 1055974852.

It is an arithmetic number, because the mean of its divisors is an integer number (1055974852).

Almost surely, 2^2111949703 is an apocalyptic number.

2111949703 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111949703 is an equidigital number, since it uses as much as digits as its factorization.

2111949703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 2111949703 is about 45955.9539450548. The cubic root of 2111949703 is about 1283.0035469835.

The spelling of 2111949703 in words is "two billion, one hundred eleven million, nine hundred forty-nine thousand, seven hundred three".