20111003013311 has 4 divisors (see below), whose sum is σ = 22984003443792. Its totient is φ = 17238002582832.

The previous prime is 20111003013287. The next prime is 20111003013313. The reversal of 20111003013311 is 11331030011102.

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 20111003013311 - 2²⁶ = 20110935904447 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 20111003013311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111003013313) 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, 1436500215230 + ... + 1436500215243.

It is an arithmetic number, because the mean of its divisors is an integer number (5746000860948).

Almost surely, 2^{20111003013311} is an apocalyptic number.

20111003013311 is a deficient number, since it is larger than the sum of its proper divisors (2873000430481).

20111003013311 is an equidigital number, since it uses as much as digits as its factorization.

20111003013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873000430480.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 20111003013311 its reverse (11331030011102), we get a palindrome (31442033024413).

The spelling of 20111003013311 in words is "twenty trillion, one hundred eleven billion, three million, thirteen thousand, three hundred eleven".