13313031111111 has 16 divisors (see below), whose sum is σ = 18163635712640. Its totient is φ = 8668893028320.

The previous prime is 13313031111109. The next prime is 13313031111113. The reversal of 13313031111111 is 11111113031331.

It is an interprime number because it is at equal distance from previous prime (13313031111109) and next prime (13313031111113).

It is not a de Polignac number, because 13313031111111 - 2¹ = 13313031111109 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 (13313031111113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28745085 + ... + 29204553.

It is an arithmetic number, because the mean of its divisors is an integer number (1135227232040).

Almost surely, 2^{13313031111111} is an apocalyptic number.

13313031111111 is a deficient number, since it is larger than the sum of its proper divisors (4850604601529).

13313031111111 is a wasteful number, since it uses less digits than its factorization.

13313031111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684126.

The product of its (nonzero) digits is 81, while the sum is 21.

Adding to 13313031111111 its reverse (11111113031331), we get a palindrome (24424144142442).

The spelling of 13313031111111 in words is "thirteen trillion, three hundred thirteen billion, thirty-one million, one hundred eleven thousand, one hundred eleven".