13011221103 has 8 divisors (see below), whose sum is σ = 17349856128. Its totient is φ = 8673366744.

The previous prime is 13011221057. The next prime is 13011221161. The reversal of 13011221103 is 30112211031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13011221103 - 2⁶ = 13011221039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011221173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155101 + ... + 223782.

It is an arithmetic number, because the mean of its divisors is an integer number (2168732016).

Almost surely, 2^13011221103 is an apocalyptic number.

13011221103 is a deficient number, since it is larger than the sum of its proper divisors (4338635025).

13011221103 is a wasteful number, since it uses less digits than its factorization.

13011221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390333.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13011221103 its reverse (30112211031), we get a palindrome (43123432134).

The spelling of 13011221103 in words is "thirteen billion, eleven million, two hundred twenty-one thousand, one hundred three".