20211302033 has 4 divisors (see below), whose sum is σ = 21766017588. Its totient is φ = 18656586480.

The previous prime is 20211302017. The next prime is 20211302047. The reversal of 20211302033 is 33020311202.

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 7407700624 + 12803601409 = 86068^2 + 113153^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211302033 - 2⁴ = 20211302017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211305033) 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, 777357758 + ... + 777357783.

It is an arithmetic number, because the mean of its divisors is an integer number (5441504397).

Almost surely, 2^20211302033 is an apocalyptic number.

It is an amenable number.

20211302033 is a deficient number, since it is larger than the sum of its proper divisors (1554715555).

20211302033 is a wasteful number, since it uses less digits than its factorization.

20211302033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554715554.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20211302033 its reverse (33020311202), we get a palindrome (53231613235).

The spelling of 20211302033 in words is "twenty billion, two hundred eleven million, three hundred two thousand, thirty-three".