2133123011 has 4 divisors (see below), whose sum is σ = 2133216000. Its totient is φ = 2133030024.

The previous prime is 2133122983. The next prime is 2133123029. The reversal of 2133123011 is 1103213312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2133123011 - 2⁶ = 2133122947 is a prime.

It is a super-2 number, since 2×2133123011² = 9100427560115412242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133122011) 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, 15230 + ... + 67068.

It is an arithmetic number, because the mean of its divisors is an integer number (533304000).

Almost surely, 2^2133123011 is an apocalyptic number.

2133123011 is a deficient number, since it is larger than the sum of its proper divisors (92989).

2133123011 is an equidigital number, since it uses as much as digits as its factorization.

2133123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92988.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2133123011 is about 46185.7446730049. The cubic root of 2133123011 is about 1287.2768730880.

Adding to 2133123011 its reverse (1103213312), we get a palindrome (3236336323).

The spelling of 2133123011 in words is "two billion, one hundred thirty-three million, one hundred twenty-three thousand, eleven".