2110209973 has 2 divisors, whose sum is σ = 2110209974. Its totient is φ = 2110209972.

The previous prime is 2110209971. The next prime is 2110210019. The reversal of 2110209973 is 3799020112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227941764 + 882268209 = 35042^2 + 29703^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110209973 - 2¹ = 2110209971 is a prime.

It is a super-2 number, since 2×2110209973² = 8905972260297321458, which contains 22 as substring.

Together with 2110209971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110209971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055104986 + 1055104987.

It is an arithmetic number, because the mean of its divisors is an integer number (1055104987).

Almost surely, 2^2110209973 is an apocalyptic number.

It is an amenable number.

2110209973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110209973 is an equidigital number, since it uses as much as digits as its factorization.

2110209973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 2110209973 is about 45937.0218124771. The cubic root of 2110209973 is about 1282.6511564990.

The spelling of 2110209973 in words is "two billion, one hundred ten million, two hundred nine thousand, nine hundred seventy-three".