13111111232101 has 4 divisors (see below), whose sum is σ = 13119788342304. Its totient is φ = 13102434121900.

The previous prime is 13111111232033. The next prime is 13111111232117. The reversal of 13111111232101 is 10123211111131.

13111111232101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111111232101 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 (13111111239101) 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, 4338552835 + ... + 4338555856.

It is an arithmetic number, because the mean of its divisors is an integer number (3279947085576).

Almost surely, 2^{13111111232101} is an apocalyptic number.

It is an amenable number.

13111111232101 is a deficient number, since it is larger than the sum of its proper divisors (8677110203).

13111111232101 is an equidigital number, since it uses as much as digits as its factorization.

13111111232101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8677110202.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 13111111232101 its reverse (10123211111131), we get a palindrome (23234322343232).

The spelling of 13111111232101 in words is "thirteen trillion, one hundred eleven billion, one hundred eleven million, two hundred thirty-two thousand, one hundred one".