20200120133 has 2 divisors, whose sum is σ = 20200120134. Its totient is φ = 20200120132.

The previous prime is 20200120121. The next prime is 20200120169. The reversal of 20200120133 is 33102100202.

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., 14607623044 + 5592497089 = 120862^2 + 74783^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200120133 - 2²⁴ = 20183342917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200120333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100060066 + 10100060067.

It is an arithmetic number, because the mean of its divisors is an integer number (10100060067).

Almost surely, 2^20200120133 is an apocalyptic number.

It is an amenable number.

20200120133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200120133 is an equidigital number, since it uses as much as digits as its factorization.

20200120133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20200120133 its reverse (33102100202), we get a palindrome (53302220335).

The spelling of 20200120133 in words is "twenty billion, two hundred million, one hundred twenty thousand, one hundred thirty-three".