111223123102 has 16 divisors (see below), whose sum is σ = 205334996832. Its totient is φ = 44000356320.

The previous prime is 111223123093. The next prime is 111223123181. The reversal of 111223123102 is 201321322111.

It is a super-2 number, since 2×111223123102² (a number of 23 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 111223123102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305557849 + ... + 305558212.

It is an arithmetic number, because the mean of its divisors is an integer number (12833437302).

Almost surely, 2^111223123102 is an apocalyptic number.

111223123102 is a deficient number, since it is larger than the sum of its proper divisors (94111873730).

111223123102 is a wasteful number, since it uses less digits than its factorization.

111223123102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611116083.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111223123102 its reverse (201321322111), we get a palindrome (312544445213).

The spelling of 111223123102 in words is "one hundred eleven billion, two hundred twenty-three million, one hundred twenty-three thousand, one hundred two".