111232231123 has 16 divisors (see below), whose sum is σ = 127235132640. Its totient is φ = 96331239936.

The previous prime is 111232231111. The next prime is 111232231177. The reversal of 111232231123 is 321132232111.

It is a cyclic number.

It is not a de Polignac number, because 111232231123 - 2³³ = 102642296531 is a prime.

It is a super-2 number, since 2×111232231123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111232231094 and 111232231103.

It is not an unprimeable number, because it can be changed into a prime (111232231223) 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, 723813 + ... + 863926.

It is an arithmetic number, because the mean of its divisors is an integer number (7952195790).

Almost surely, 2^111232231123 is an apocalyptic number.

111232231123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111232231123 is a deficient number, since it is larger than the sum of its proper divisors (16002901517).

111232231123 is a wasteful number, since it uses less digits than its factorization.

111232231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588086.

The product of its digits is 432, while the sum is 22.

Adding to 111232231123 its reverse (321132232111), we get a palindrome (432364463234).

The spelling of 111232231123 in words is "one hundred eleven billion, two hundred thirty-two million, two hundred thirty-one thousand, one hundred twenty-three".