13111220331302 has 16 divisors (see below), whose sum is σ = 19751748756480. Its totient is φ = 6527305536192.

The previous prime is 13111220331283. The next prime is 13111220331317. The reversal of 13111220331302 is 20313302211131.

13111220331302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18731099 + ... + 19418457.

It is an arithmetic number, because the mean of its divisors is an integer number (1234484297280).

Almost surely, 2^{13111220331302} is an apocalyptic number.

13111220331302 is a deficient number, since it is larger than the sum of its proper divisors (6640528425178).

13111220331302 is a wasteful number, since it uses less digits than its factorization.

13111220331302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728527.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13111220331302 its reverse (20313302211131), we get a palindrome (33424522542433).

The spelling of 13111220331302 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty million, three hundred thirty-one thousand, three hundred two".