20045383133 has 4 divisors (see below), whose sum is σ = 20299122240. Its totient is φ = 19791644028.

The previous prime is 20045383093. The next prime is 20045383187. The reversal of 20045383133 is 33138354002.

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 20045383133 - 2¹⁶ = 20045317597 is a prime.

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 20045383133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045313133) 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, 126869435 + ... + 126869592.

It is an arithmetic number, because the mean of its divisors is an integer number (5074780560).

Almost surely, 2^20045383133 is an apocalyptic number.

It is an amenable number.

20045383133 is a deficient number, since it is larger than the sum of its proper divisors (253739107).

20045383133 is an equidigital number, since it uses as much as digits as its factorization.

20045383133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253739106.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 20045383133 in words is "twenty billion, forty-five million, three hundred eighty-three thousand, one hundred thirty-three".