20213433101 has 4 divisors (see below), whose sum is σ = 20413566204. Its totient is φ = 20013300000.

The previous prime is 20213433073. The next prime is 20213433113. The reversal of 20213433101 is 10133431202.

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 18288505225 + 1924927876 = 135235^2 + 43874^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213433101 - 2¹⁰ = 20213432077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213433131) 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, 100066400 + ... + 100066601.

It is an arithmetic number, because the mean of its divisors is an integer number (5103391551).

Almost surely, 2^20213433101 is an apocalyptic number.

It is an amenable number.

20213433101 is a deficient number, since it is larger than the sum of its proper divisors (200133103).

20213433101 is a wasteful number, since it uses less digits than its factorization.

20213433101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200133102.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20213433101 its reverse (10133431202), we get a palindrome (30346864303).

The spelling of 20213433101 in words is "twenty billion, two hundred thirteen million, four hundred thirty-three thousand, one hundred one".