113103111221 has 8 divisors (see below), whose sum is σ = 114965669280. Its totient is φ = 111252454992.

The previous prime is 113103111211. The next prime is 113103111223. The reversal of 113103111221 is 122111301311.

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

It is a de Polignac number, because none of the positive numbers 2^k-113103111221 is a prime.

It is a super-2 number, since 2×113103111221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113103111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113103111223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2956295 + ... + 2994308.

It is an arithmetic number, because the mean of its divisors is an integer number (14370708660).

Almost surely, 2^113103111221 is an apocalyptic number.

It is an amenable number.

113103111221 is a deficient number, since it is larger than the sum of its proper divisors (1862558059).

113103111221 is an equidigital number, since it uses as much as digits as its factorization.

113103111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950915.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 113103111221 its reverse (122111301311), we get a palindrome (235214412532).

The spelling of 113103111221 in words is "one hundred thirteen billion, one hundred three million, one hundred eleven thousand, two hundred twenty-one".