20213213033 has 8 divisors (see below), whose sum is σ = 21771717576. Its totient is φ = 18655228800.

The previous prime is 20213212963. The next prime is 20213213047. The reversal of 20213213033 is 33031231202.

It can be written as a sum of positive squares in 4 ways, for example, as 1081620544 + 19131592489 = 32888^2 + 138317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20213213033 - 2³⁰ = 19139471209 is a prime.

It is a super-2 number, since 2×20213213033² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20213212996 and 20213213014.

It is not an unprimeable number, because it can be changed into a prime (20213213233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47438 + ... + 206583.

It is an arithmetic number, because the mean of its divisors is an integer number (2721464697).

Almost surely, 2^20213213033 is an apocalyptic number.

It is an amenable number.

20213213033 is a deficient number, since it is larger than the sum of its proper divisors (1558504543).

20213213033 is a wasteful number, since it uses less digits than its factorization.

20213213033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260155.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20213213033 its reverse (33031231202), we get a palindrome (53244444235).

The spelling of 20213213033 in words is "twenty billion, two hundred thirteen million, two hundred thirteen thousand, thirty-three".