20045188133 has 2 divisors, whose sum is σ = 20045188134. Its totient is φ = 20045188132.

The previous prime is 20045188127. The next prime is 20045188151. The reversal of 20045188133 is 33188154002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16246561444 + 3798626689 = 127462^2 + 61633^2 .

It is a cyclic number.

It is not a de Polignac number, because 20045188133 - 2⁶ = 20045188069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20045188093 and 20045188102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20045187133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022594066 + 10022594067.

It is an arithmetic number, because the mean of its divisors is an integer number (10022594067).

Almost surely, 2^20045188133 is an apocalyptic number.

It is an amenable number.

20045188133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20045188133 is an equidigital number, since it uses as much as digits as its factorization.

20045188133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 20045188133 in words is "twenty billion, forty-five million, one hundred eighty-eight thousand, one hundred thirty-three".