111020220211123 has 4 divisors (see below), whose sum is σ = 111021180186208. Its totient is φ = 111019260236040.

The previous prime is 111020220211039. The next prime is 111020220211129. The reversal of 111020220211123 is 321112022020111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111020220211123 is a prime.

It is a super-2 number, since 2×111020220211123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111020220211123.

It is not an unprimeable number, because it can be changed into a prime (111020220211129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479814048 + ... + 480045373.

It is an arithmetic number, because the mean of its divisors is an integer number (27755295046552).

Almost surely, 2^{111020220211123} is an apocalyptic number.

111020220211123 is a deficient number, since it is larger than the sum of its proper divisors (959975085).

111020220211123 is an equidigital number, since it uses as much as digits as its factorization.

111020220211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959975084.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111020220211123 its reverse (321112022020111), we get a palindrome (432132242231234).

The spelling of 111020220211123 in words is "one hundred eleven trillion, twenty billion, two hundred twenty million, two hundred eleven thousand, one hundred twenty-three".