111111013223102 has 16 divisors (see below), whose sum is σ = 166720232957760. Its totient is φ = 55537603968288.

The previous prime is 111111013223071. The next prime is 111111013223159. The reversal of 111111013223102 is 201322310111111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131159024 + ... + 132003452.

It is an arithmetic number, because the mean of its divisors is an integer number (10420014559860).

Almost surely, 2^{111111013223102} is an apocalyptic number.

111111013223102 is a deficient number, since it is larger than the sum of its proper divisors (55609219734658).

111111013223102 is a wasteful number, since it uses less digits than its factorization.

111111013223102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865555.

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

Adding to 111111013223102 its reverse (201322310111111), we get a palindrome (312433323334213).

The spelling of 111111013223102 in words is "one hundred eleven trillion, one hundred eleven billion, thirteen million, two hundred twenty-three thousand, one hundred two".