1111102011223 has 8 divisors (see below), whose sum is σ = 1134028217808. Its totient is φ = 1088248472064.

The previous prime is 1111102011119. The next prime is 1111102011241. The reversal of 1111102011223 is 3221102011111.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111102011223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111102011197 and 1111102011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111102011023) 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, 18135961 + ... + 18197122.

It is an arithmetic number, because the mean of its divisors is an integer number (141753527226).

Almost surely, 2^{1111102011223} is an apocalyptic number.

1111102011223 is a deficient number, since it is larger than the sum of its proper divisors (22926206585).

1111102011223 is an equidigital number, since it uses as much as digits as its factorization.

1111102011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36333713.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1111102011223 its reverse (3221102011111), we get a palindrome (4332204022334).

The spelling of 1111102011223 in words is "one trillion, one hundred eleven billion, one hundred two million, eleven thousand, two hundred twenty-three".