2101233133 has 4 divisors (see below), whose sum is σ = 2224835100. Its totient is φ = 1977631168.

The previous prime is 2101233131. The next prime is 2101233157. The reversal of 2101233133 is 3313321012.

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 1648522404 + 452710729 = 40602^2 + 21277^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101233133 - 2¹ = 2101233131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101233133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101233131) 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, 61800958 + ... + 61800991.

It is an arithmetic number, because the mean of its divisors is an integer number (556208775).

Almost surely, 2^2101233133 is an apocalyptic number.

It is an amenable number.

2101233133 is a deficient number, since it is larger than the sum of its proper divisors (123601967).

2101233133 is a wasteful number, since it uses less digits than its factorization.

2101233133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123601966.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2101233133 is about 45839.2095590664. The cubic root of 2101233133 is about 1280.8297706125.

Adding to 2101233133 its reverse (3313321012), we get a palindrome (5414554145).

It can be divided in two parts, 21012 and 33133, that added together give a palindrome (54145).

The spelling of 2101233133 in words is "two billion, one hundred one million, two hundred thirty-three thousand, one hundred thirty-three".