2133111773 has 4 divisors (see below), whose sum is σ = 2297197308. Its totient is φ = 1969026240.

The previous prime is 2133111751. The next prime is 2133111787. The reversal of 2133111773 is 3771113312.

It is a happy number.

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 365497924 + 1767613849 = 19118^2 + 42043^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133111773 - 2¹⁸ = 2132849629 is a prime.

It is a super-3 number, since 3×2133111773³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133111373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82042748 + ... + 82042773.

It is an arithmetic number, because the mean of its divisors is an integer number (574299327).

Almost surely, 2^2133111773 is an apocalyptic number.

It is an amenable number.

2133111773 is a deficient number, since it is larger than the sum of its proper divisors (164085535).

2133111773 is a wasteful number, since it uses less digits than its factorization.

2133111773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164085534.

The product of its digits is 2646, while the sum is 29.

The square root of 2133111773 is about 46185.6230119287. The cubic root of 2133111773 is about 1287.2746124834.

The spelling of 2133111773 in words is "two billion, one hundred thirty-three million, one hundred eleven thousand, seven hundred seventy-three".