11031312312123 has 4 divisors (see below), whose sum is σ = 14708416416168. Its totient is φ = 7354208208080.

The previous prime is 11031312312103. The next prime is 11031312312173. The reversal of 11031312312123 is 32121321313011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11031312312123 - 2⁹ = 11031312311611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11031312312093 and 11031312312102.

It is not an unprimeable number, because it can be changed into a prime (11031312312103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838552052018 + ... + 1838552052023.

It is an arithmetic number, because the mean of its divisors is an integer number (3677104104042).

Almost surely, 2^{11031312312123} is an apocalyptic number.

11031312312123 is a deficient number, since it is larger than the sum of its proper divisors (3677104104045).

11031312312123 is an equidigital number, since it uses as much as digits as its factorization.

11031312312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677104104044.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 11031312312123 its reverse (32121321313011), we get a palindrome (43152633625134).

The spelling of 11031312312123 in words is "eleven trillion, thirty-one billion, three hundred twelve million, three hundred twelve thousand, one hundred twenty-three".