2110999973 has 4 divisors (see below), whose sum is σ = 2235176460. Its totient is φ = 1986823488.

The previous prime is 2110999967. The next prime is 2110999981. The reversal of 2110999973 is 3799990112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1878528964 + 232471009 = 43342^2 + 15247^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110999973 - 2⁶ = 2110999909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110999573) 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 in 3 ways as a sum of consecutive naturals, for example, 62088218 + ... + 62088251.

It is an arithmetic number, because the mean of its divisors is an integer number (558794115).

Almost surely, 2^2110999973 is an apocalyptic number.

It is an amenable number.

2110999973 is a deficient number, since it is larger than the sum of its proper divisors (124176487).

2110999973 is a wasteful number, since it uses less digits than its factorization.

2110999973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124176486.

The product of its (nonzero) digits is 275562, while the sum is 50.

The square root of 2110999973 is about 45945.6197368150. The cubic root of 2110999973 is about 1282.8111987071.

The spelling of 2110999973 in words is "two billion, one hundred ten million, nine hundred ninety-nine thousand, nine hundred seventy-three".