20013132311 has 4 divisors (see below), whose sum is σ = 20013415824. Its totient is φ = 20012848800.

The previous prime is 20013132299. The next prime is 20013132367. The reversal of 20013132311 is 11323131002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20013132311 - 2¹⁰ = 20013131287 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 20013132311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013132911) 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, 57326 + ... + 208116.

It is an arithmetic number, because the mean of its divisors is an integer number (5003353956).

Almost surely, 2^20013132311 is an apocalyptic number.

20013132311 is a deficient number, since it is larger than the sum of its proper divisors (283513).

20013132311 is a wasteful number, since it uses less digits than its factorization.

20013132311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283512.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20013132311 its reverse (11323131002), we get a palindrome (31336263313).

The spelling of 20013132311 in words is "twenty billion, thirteen million, one hundred thirty-two thousand, three hundred eleven".