1123312313023 has 4 divisors (see below), whose sum is σ = 1123387875160. Its totient is φ = 1123236750888.

The previous prime is 1123312312981. The next prime is 1123312313069. The reversal of 1123312313023 is 3203132133211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123312313023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123312313093) 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 3 ways as a sum of consecutive naturals, for example, 37758765 + ... + 37788502.

It is an arithmetic number, because the mean of its divisors is an integer number (280846968790).

Almost surely, 2^{1123312313023} is an apocalyptic number.

1123312313023 is a deficient number, since it is larger than the sum of its proper divisors (75562137).

1123312313023 is an equidigital number, since it uses as much as digits as its factorization.

1123312313023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75562136.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1123312313023 its reverse (3203132133211), we get a palindrome (4326444446234).

The spelling of 1123312313023 in words is "one trillion, one hundred twenty-three billion, three hundred twelve million, three hundred thirteen thousand, twenty-three".