111222303120123 has 16 divisors (see below), whose sum is σ = 162410664272640. Its totient is φ = 67284418053024.

The previous prime is 111222303120101. The next prime is 111222303120139. The reversal of 111222303120123 is 321021303222111.

It is not a de Polignac number, because 111222303120123 - 2¹² = 111222303116027 is a prime.

It is a super-2 number, since 2×111222303120123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111222303120093 and 111222303120102.

It is not an unprimeable number, because it can be changed into a prime (111222303120223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24168251311 + ... + 24168255912.

It is an arithmetic number, because the mean of its divisors is an integer number (10150666517040).

Almost surely, 2^{111222303120123} is an apocalyptic number.

111222303120123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111222303120123 is a deficient number, since it is larger than the sum of its proper divisors (51188361152517).

111222303120123 is a wasteful number, since it uses less digits than its factorization.

111222303120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48336507298.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 111222303120123 its reverse (321021303222111), we get a palindrome (432243606342234).

The spelling of 111222303120123 in words is "one hundred eleven trillion, two hundred twenty-two billion, three hundred three million, one hundred twenty thousand, one hundred twenty-three".