20203442133 has 16 divisors (see below), whose sum is σ = 31219808256. Its totient is φ = 11382220080.

The previous prime is 20203442123. The next prime is 20203442143. The reversal of 20203442133 is 33124430202.

It is an interprime number because it is at equal distance from previous prime (20203442123) and next prime (20203442143).

It is not a de Polignac number, because 20203442133 - 2¹⁸ = 20203179989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203442123) 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, 6773641 + ... + 6776622.

It is an arithmetic number, because the mean of its divisors is an integer number (1951238016).

Almost surely, 2^20203442133 is an apocalyptic number.

It is an amenable number.

20203442133 is a deficient number, since it is larger than the sum of its proper divisors (11016366123).

20203442133 is a wasteful number, since it uses less digits than its factorization.

20203442133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13550344.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20203442133 its reverse (33124430202), we get a palindrome (53327872335).

The spelling of 20203442133 in words is "twenty billion, two hundred three million, four hundred forty-two thousand, one hundred thirty-three".