111211021223103 has 8 divisors (see below), whose sum is σ = 150369831513216. Its totient is φ = 73096445874200.

The previous prime is 111211021223041. The next prime is 111211021223119. The reversal of 111211021223103 is 301322120112111.

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

It is a cyclic number.

It is not a de Polignac number, because 111211021223103 - 2¹² = 111211021219007 is a prime.

It is a super-2 number, since 2×111211021223103² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111211021223103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211021223173) 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, 261058735053 + ... + 261058735478.

It is an arithmetic number, because the mean of its divisors is an integer number (18796228939152).

Almost surely, 2^{111211021223103} is an apocalyptic number.

111211021223103 is a deficient number, since it is larger than the sum of its proper divisors (39158810290113).

111211021223103 is an equidigital number, since it uses as much as digits as its factorization.

111211021223103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522117470605.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 111211021223103 its reverse (301322120112111), we get a palindrome (412533141335214).

The spelling of 111211021223103 in words is "one hundred eleven trillion, two hundred eleven billion, twenty-one million, two hundred twenty-three thousand, one hundred three".