20023001121133 has 4 divisors (see below), whose sum is σ = 20052752980828. Its totient is φ = 19993249261440.

The previous prime is 20023001121121. The next prime is 20023001121169. The reversal of 20023001121133 is 33112110032002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2149748304804 + 17873252816329 = 1466202^2 + 4227677^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023001121133 - 2⁹ = 20023001120621 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 20023001121133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023001125133) 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, 14875928838 + ... + 14875930183.

It is an arithmetic number, because the mean of its divisors is an integer number (5013188245207).

Almost surely, 2^{20023001121133} is an apocalyptic number.

It is an amenable number.

20023001121133 is a deficient number, since it is larger than the sum of its proper divisors (29751859695).

20023001121133 is an equidigital number, since it uses as much as digits as its factorization.

20023001121133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29751859694.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20023001121133 its reverse (33112110032002), we get a palindrome (53135111153135).

The spelling of 20023001121133 in words is "twenty trillion, twenty-three billion, one million, one hundred twenty-one thousand, one hundred thirty-three".