20213000202133 has 4 divisors (see below), whose sum is σ = 20213010149580. Its totient is φ = 20212990254688.

The previous prime is 20213000202107. The next prime is 20213000202191. The reversal of 20213000202133 is 33120200031202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18771708712689 + 1441291489444 = 4332633^2 + 1200538^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213000202133 - 2⁹ = 20213000201621 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 20213000202133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213000202103) 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, 703918 + ... + 6396991.

It is an arithmetic number, because the mean of its divisors is an integer number (5053252537395).

Almost surely, 2^{20213000202133} is an apocalyptic number.

It is an amenable number.

20213000202133 is a deficient number, since it is larger than the sum of its proper divisors (9947447).

20213000202133 is an equidigital number, since it uses as much as digits as its factorization.

20213000202133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9947446.

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

Adding to 20213000202133 its reverse (33120200031202), we get a palindrome (53333200233335).

The spelling of 20213000202133 in words is "twenty trillion, two hundred thirteen billion, two hundred two thousand, one hundred thirty-three".