111203231123 has 8 divisors (see below), whose sum is σ = 113876164800. Its totient is φ = 108561930048.

The previous prime is 111203231107. The next prime is 111203231143. The reversal of 111203231123 is 321132302111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111203231123 - 2⁴ = 111203231107 is a prime.

It is a super-2 number, since 2×111203231123² (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 = 111203231095 and 111203231104.

It is not an unprimeable number, because it can be changed into a prime (111203231143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7901036 + ... + 7915097.

It is an arithmetic number, because the mean of its divisors is an integer number (14234520600).

Almost surely, 2^111203231123 is an apocalyptic number.

111203231123 is a deficient number, since it is larger than the sum of its proper divisors (2672933677).

111203231123 is an equidigital number, since it uses as much as digits as its factorization.

111203231123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15816301.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111203231123 its reverse (321132302111), we get a palindrome (432335533234).

The spelling of 111203231123 in words is "one hundred eleven billion, two hundred three million, two hundred thirty-one thousand, one hundred twenty-three".