20051433213 has 16 divisors (see below), whose sum is σ = 30557913600. Its totient is φ = 11456706096.

The previous prime is 20051433211. The next prime is 20051433221. The reversal of 20051433213 is 31233415002.

It is not a de Polignac number, because 20051433213 - 2¹ = 20051433211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051433211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164806 + ... + 259352.

It is an arithmetic number, because the mean of its divisors is an integer number (1909869600).

Almost surely, 2^20051433213 is an apocalyptic number.

It is an amenable number.

20051433213 is a deficient number, since it is larger than the sum of its proper divisors (10506480387).

20051433213 is a wasteful number, since it uses less digits than its factorization.

20051433213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104656.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 20051433213 its reverse (31233415002), we get a palindrome (51284848215).

The spelling of 20051433213 in words is "twenty billion, fifty-one million, four hundred thirty-three thousand, two hundred thirteen".