111211303123123 has 16 divisors (see below), whose sum is σ = 131671620668160. Its totient is φ = 91903746564000.

The previous prime is 111211303123117. The next prime is 111211303123147. The reversal of 111211303123123 is 321321303112111.

It is not a de Polignac number, because 111211303123123 - 2¹⁷ = 111211302992051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111211303123523) 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, 396269953 + ... + 396550498.

It is an arithmetic number, because the mean of its divisors is an integer number (8229476291760).

Almost surely, 2^{111211303123123} is an apocalyptic number.

111211303123123 is a deficient number, since it is larger than the sum of its proper divisors (20460317545037).

111211303123123 is an equidigital number, since it uses as much as digits as its factorization.

111211303123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792821178.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 111211303123123 its reverse (321321303112111), we get a palindrome (432532606235234).

The spelling of 111211303123123 in words is "one hundred eleven trillion, two hundred eleven billion, three hundred three million, one hundred twenty-three thousand, one hundred twenty-three".