111020311111223 has 16 divisors (see below), whose sum is σ = 113638827139200. Its totient is φ = 108403466690400.

The previous prime is 111020311111219. The next prime is 111020311111271. The reversal of 111020311111223 is 322111113020111.

It is a cyclic number.

It is not a de Polignac number, because 111020311111223 - 2² = 111020311111219 is a prime.

It is a super-2 number, since 2×111020311111223² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111020311111195 and 111020311111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020311111273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2045713733 + ... + 2045768001.

It is an arithmetic number, because the mean of its divisors is an integer number (7102426696200).

Almost surely, 2^{111020311111223} is an apocalyptic number.

111020311111223 is a deficient number, since it is larger than the sum of its proper divisors (2618516027977).

111020311111223 is an equidigital number, since it uses as much as digits as its factorization.

111020311111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68782.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 111020311111223 its reverse (322111113020111), we get a palindrome (433131424131334).

The spelling of 111020311111223 in words is "one hundred eleven trillion, twenty billion, three hundred eleven million, one hundred eleven thousand, two hundred twenty-three".