20133120113311 has 4 divisors (see below), whose sum is σ = 20139135390072. Its totient is φ = 20127104836552.

The previous prime is 20133120113299. The next prime is 20133120113369. The reversal of 20133120113311 is 11331102133102.

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

It is a cyclic number.

It is not a de Polignac number, because 20133120113311 - 2³⁹ = 19583364299423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133120113111) 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, 3007633360 + ... + 3007640053.

It is an arithmetic number, because the mean of its divisors is an integer number (5034783847518).

Almost surely, 2^{20133120113311} is an apocalyptic number.

20133120113311 is a deficient number, since it is larger than the sum of its proper divisors (6015276761).

20133120113311 is an equidigital number, since it uses as much as digits as its factorization.

20133120113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6015276760.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 20133120113311 its reverse (11331102133102), we get a palindrome (31464222246413).

The spelling of 20133120113311 in words is "twenty trillion, one hundred thirty-three billion, one hundred twenty million, one hundred thirteen thousand, three hundred eleven".