13111220320304 has 40 divisors (see below), whose sum is σ = 25665586702080. Its totient is φ = 6487922346048.

The previous prime is 13111220320259. The next prime is 13111220320333. The reversal of 13111220320304 is 40302302211131.

It is a self number, because there is not a number n which added to its sum of digits gives 13111220320304.

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, 172967 + ... + 5123705.

It is an arithmetic number, because the mean of its divisors is an integer number (641639667552).

Almost surely, 2^{13111220320304} is an apocalyptic number.

It is an amenable number.

13111220320304 is a deficient number, since it is larger than the sum of its proper divisors (12554366381776).

13111220320304 is a wasteful number, since it uses less digits than its factorization.

13111220320304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952457 (or 4952451 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13111220320304 its reverse (40302302211131), we get a palindrome (53413522531435).

The spelling of 13111220320304 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty million, three hundred twenty thousand, three hundred four".