20223543533 has 4 divisors (see below), whose sum is σ = 20467200768. Its totient is φ = 19979886300.

The previous prime is 20223543499. The next prime is 20223543547. The reversal of 20223543533 is 33534532202.

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.

It is a cyclic number.

It is not a de Polignac number, because 20223543533 - 2¹² = 20223539437 is a prime.

It is a super-2 number, since 2×20223543533² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20223543533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223543433) 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 3 ways as a sum of consecutive naturals, for example, 121828493 + ... + 121828658.

It is an arithmetic number, because the mean of its divisors is an integer number (5116800192).

Almost surely, 2^20223543533 is an apocalyptic number.

It is an amenable number.

20223543533 is a deficient number, since it is larger than the sum of its proper divisors (243657235).

20223543533 is an equidigital number, since it uses as much as digits as its factorization.

20223543533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243657234.

The product of its (nonzero) digits is 64800, while the sum is 32.

The spelling of 20223543533 in words is "twenty billion, two hundred twenty-three million, five hundred forty-three thousand, five hundred thirty-three".