2113213033 has 4 divisors (see below), whose sum is σ = 2237519700. Its totient is φ = 1988906368.

The previous prime is 2113213009. The next prime is 2113213043. The reversal of 2113213033 is 3303123112.

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 1796657769 + 316555264 = 42387^2 + 17792^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113213033 - 2²⁹ = 1576342121 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 2113213033.

It is not an unprimeable number, because it can be changed into a prime (2113213043) 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, 62153308 + ... + 62153341.

It is an arithmetic number, because the mean of its divisors is an integer number (559379925).

Almost surely, 2^2113213033 is an apocalyptic number.

It is an amenable number.

2113213033 is a deficient number, since it is larger than the sum of its proper divisors (124306667).

2113213033 is a wasteful number, since it uses less digits than its factorization.

2113213033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124306666.

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

The square root of 2113213033 is about 45969.6968991530. The cubic root of 2113213033 is about 1283.2593191399.

Adding to 2113213033 its reverse (3303123112), we get a palindrome (5416336145).

The spelling of 2113213033 in words is "two billion, one hundred thirteen million, two hundred thirteen thousand, thirty-three".