20133121311233 has 4 divisors (see below), whose sum is σ = 23009281498560. Its totient is φ = 17256961123908.

The previous prime is 20133121311223. The next prime is 20133121311299. The reversal of 20133121311233 is 33211312133102.

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 20133121311233 - 2²⁴ = 20133104534017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20133121311223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438080093653 + ... + 1438080093666.

It is an arithmetic number, because the mean of its divisors is an integer number (5752320374640).

Almost surely, 2^{20133121311233} is an apocalyptic number.

It is an amenable number.

20133121311233 is a deficient number, since it is larger than the sum of its proper divisors (2876160187327).

20133121311233 is an equidigital number, since it uses as much as digits as its factorization.

20133121311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876160187326.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 20133121311233 its reverse (33211312133102), we get a palindrome (53344433444335).

The spelling of 20133121311233 in words is "twenty trillion, one hundred thirty-three billion, one hundred twenty-one million, three hundred eleven thousand, two hundred thirty-three".