2133111121 has 8 divisors (see below), whose sum is σ = 2195132544. Its totient is φ = 2071782960.

The previous prime is 2133111119. The next prime is 2133111131. The reversal of 2133111121 is 1211113312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2133111121 - 2¹ = 2133111119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2133111095 and 2133111104.

It is not an unprimeable number, because it can be changed into a prime (2133111131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167070 + ... + 179383.

It is an arithmetic number, because the mean of its divisors is an integer number (274391568).

Almost surely, 2^2133111121 is an apocalyptic number.

It is an amenable number.

2133111121 is a deficient number, since it is larger than the sum of its proper divisors (62021423).

2133111121 is a wasteful number, since it uses less digits than its factorization.

2133111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346631.

The product of its digits is 36, while the sum is 16.

The square root of 2133111121 is about 46185.6159534546. The cubic root of 2133111121 is about 1287.2744813287.

Adding to 2133111121 its reverse (1211113312), we get a palindrome (3344224433).

The spelling of 2133111121 in words is "two billion, one hundred thirty-three million, one hundred eleven thousand, one hundred twenty-one".