20234442133 has 4 divisors (see below), whose sum is σ = 20536448800. Its totient is φ = 19932435468.

The previous prime is 20234442091. The next prime is 20234442149. The reversal of 20234442133 is 33124443202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33124443202 = 2 ⋅16562221601.

It is a cyclic number.

It is not a de Polignac number, because 20234442133 - 2¹⁷ = 20234311061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234443133) 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, 151003233 + ... + 151003366.

It is an arithmetic number, because the mean of its divisors is an integer number (5134112200).

Almost surely, 2^20234442133 is an apocalyptic number.

It is an amenable number.

20234442133 is a deficient number, since it is larger than the sum of its proper divisors (302006667).

20234442133 is an equidigital number, since it uses as much as digits as its factorization.

20234442133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302006666.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20234442133 its reverse (33124443202), we get a palindrome (53358885335).

The spelling of 20234442133 in words is "twenty billion, two hundred thirty-four million, four hundred forty-two thousand, one hundred thirty-three".