111021211202103 has 10 divisors (see below), whose sum is σ = 165846500684744. Its totient is φ = 74014140801348.

The previous prime is 111021211202051. The next prime is 111021211202119. The reversal of 111021211202103 is 301202112120111.

It is a happy number.

It is not a de Polignac number, because 111021211202103 - 2²⁸ = 111020942766647 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 (111021211202173) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 685316118451 + ... + 685316118612.

Almost surely, 2^{111021211202103} is an apocalyptic number.

111021211202103 is a deficient number, since it is larger than the sum of its proper divisors (54825289482641).

111021211202103 is an equidigital number, since it uses as much as digits as its factorization.

111021211202103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370632237075 (or 1370632237066 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 111021211202103 its reverse (301202112120111), we get a palindrome (412223323322214).

The spelling of 111021211202103 in words is "one hundred eleven trillion, twenty-one billion, two hundred eleven million, two hundred two thousand, one hundred three".