111111223013 has 16 divisors (see below), whose sum is σ = 128829818880. Its totient is φ = 93855207600.

The previous prime is 111111223001. The next prime is 111111223037. The reversal of 111111223013 is 310322111111.

It is not a de Polignac number, because 111111223013 - 2¹² = 111111218917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111111222982 and 111111223000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111223513) 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, 1100198 + ... + 1196936.

It is an arithmetic number, because the mean of its divisors is an integer number (8051863680).

Almost surely, 2^111111223013 is an apocalyptic number.

It is an amenable number.

111111223013 is a deficient number, since it is larger than the sum of its proper divisors (17718595867).

111111223013 is an equidigital number, since it uses as much as digits as its factorization.

111111223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99128.

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

Adding to 111111223013 its reverse (310322111111), we get a palindrome (421433334124).

The spelling of 111111223013 in words is "one hundred eleven billion, one hundred eleven million, two hundred twenty-three thousand, thirteen".