1122111023123 has 4 divisors (see below), whose sum is σ = 1122767614080. Its totient is φ = 1121454432168.

The previous prime is 1122111023071. The next prime is 1122111023161. The reversal of 1122111023123 is 3213201112211.

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 1122111023123 - 2¹⁶ = 1122110957587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122111023095 and 1122111023104.

It is not an unprimeable number, because it can be changed into a prime (1122111023183) 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, 328292915 + ... + 328296332.

It is an arithmetic number, because the mean of its divisors is an integer number (280691903520).

Almost surely, 2^{1122111023123} is an apocalyptic number.

1122111023123 is a deficient number, since it is larger than the sum of its proper divisors (656590957).

1122111023123 is an equidigital number, since it uses as much as digits as its factorization.

1122111023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656590956.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1122111023123 its reverse (3213201112211), we get a palindrome (4335312135334).

The spelling of 1122111023123 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, twenty-three thousand, one hundred twenty-three".