20013133711522 has 64 divisors (see below), whose sum is σ = 35800247704320. Its totient is φ = 8209505961216.

The previous prime is 20013133711489. The next prime is 20013133711531. The reversal of 20013133711522 is 22511733131002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21703353 + ... + 22606675.

It is an arithmetic number, because the mean of its divisors is an integer number (559378870380).

Almost surely, 2^{20013133711522} is an apocalyptic number.

20013133711522 is a deficient number, since it is larger than the sum of its proper divisors (15787113992798).

20013133711522 is a wasteful number, since it uses less digits than its factorization.

20013133711522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903835.

The product of its (nonzero) digits is 7560, while the sum is 31.

Adding to 20013133711522 its reverse (22511733131002), we get a palindrome (42524866842524).

The spelling of 20013133711522 in words is "twenty trillion, thirteen billion, one hundred thirty-three million, seven hundred eleven thousand, five hundred twenty-two".