2101020233 has 4 divisors (see below), whose sum is σ = 2262637188. Its totient is φ = 1939403280.

The previous prime is 2101020203. The next prime is 2101020379. The reversal of 2101020233 is 3320201012.

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 280462009 + 1820558224 = 16747^2 + 42668^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101020233 - 2¹⁰ = 2101019209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101020203) 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, 80808458 + ... + 80808483.

It is an arithmetic number, because the mean of its divisors is an integer number (565659297).

Almost surely, 2^2101020233 is an apocalyptic number.

It is an amenable number.

2101020233 is a deficient number, since it is larger than the sum of its proper divisors (161616955).

2101020233 is a wasteful number, since it uses less digits than its factorization.

2101020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161616954.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2101020233 is about 45836.8872525175. The cubic root of 2101020233 is about 1280.7865106391.

Adding to 2101020233 its reverse (3320201012), we get a palindrome (5421221245).

The spelling of 2101020233 in words is "two billion, one hundred one million, twenty thousand, two hundred thirty-three".