111210232123 has 4 divisors (see below), whose sum is σ = 111211551328. Its totient is φ = 111208912920.

The previous prime is 111210232079. The next prime is 111210232129. The reversal of 111210232123 is 321232012111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321232012111 = 3023 ⋅106262657.

It is a cyclic number.

It is not a de Polignac number, because 111210232123 - 2¹³ = 111210223931 is a prime.

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 111210232123.

It is not an unprimeable number, because it can be changed into a prime (111210232129) 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, 523836 + ... + 704857.

It is an arithmetic number, because the mean of its divisors is an integer number (27802887832).

Almost surely, 2^111210232123 is an apocalyptic number.

111210232123 is a deficient number, since it is larger than the sum of its proper divisors (1319205).

111210232123 is an equidigital number, since it uses as much as digits as its factorization.

111210232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319204.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111210232123 its reverse (321232012111), we get a palindrome (432442244234).

The spelling of 111210232123 in words is "one hundred eleven billion, two hundred ten million, two hundred thirty-two thousand, one hundred twenty-three".