2101320433 has 4 divisors (see below), whose sum is σ = 2101418608. Its totient is φ = 2101222260.

The previous prime is 2101320427. The next prime is 2101320439. The reversal of 2101320433 is 3340231012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2101320427) and next prime (2101320439).

It is a cyclic number.

It is not a de Polignac number, because 2101320433 - 2²¹ = 2099223281 is a prime.

It is a super-4 number, since 4×2101320433⁴ (a number of 38 digits) contains 4444 as substring.

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 2101320433.

It is not an unprimeable number, because it can be changed into a prime (2101320439) 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, 1791 + ... + 64852.

It is an arithmetic number, because the mean of its divisors is an integer number (525354652).

Almost surely, 2^2101320433 is an apocalyptic number.

It is an amenable number.

2101320433 is a deficient number, since it is larger than the sum of its proper divisors (98175).

2101320433 is an equidigital number, since it uses as much as digits as its factorization.

2101320433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98174.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2101320433 is about 45840.1617907267. The cubic root of 2101320433 is about 1280.8475085920.

Adding to 2101320433 its reverse (3340231012), we get a palindrome (5441551445).

The spelling of 2101320433 in words is "two billion, one hundred one million, three hundred twenty thousand, four hundred thirty-three".