20213834133 has 16 divisors (see below), whose sum is σ = 28384171200. Its totient is φ = 12760387200.

The previous prime is 20213834131. The next prime is 20213834153. The reversal of 20213834133 is 33143831202.

It is not a de Polignac number, because 20213834133 - 2¹ = 20213834131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20213834133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213834131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32233 + ... + 203633.

It is an arithmetic number, because the mean of its divisors is an integer number (1774010700).

Almost surely, 2^20213834133 is an apocalyptic number.

It is an amenable number.

20213834133 is a deficient number, since it is larger than the sum of its proper divisors (8170337067).

20213834133 is a wasteful number, since it uses less digits than its factorization.

20213834133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173492.

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 20213834133 in words is "twenty billion, two hundred thirteen million, eight hundred thirty-four thousand, one hundred thirty-three".