1223113131023 has 8 divisors (see below), whose sum is σ = 1471414293120. Its totient is φ = 993204647640.

The previous prime is 1223113131011. The next prime is 1223113131049. The reversal of 1223113131023 is 3201313113221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223113131023 - 2⁴ = 1223113131007 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 1223113131023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223113131073) 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 7 ways as a sum of consecutive naturals, for example, 4598169533 + ... + 4598169798.

It is an arithmetic number, because the mean of its divisors is an integer number (183926786640).

Almost surely, 2^{1223113131023} is an apocalyptic number.

1223113131023 is a deficient number, since it is larger than the sum of its proper divisors (248301162097).

1223113131023 is an equidigital number, since it uses as much as digits as its factorization.

1223113131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9196339357.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1223113131023 its reverse (3201313113221), we get a palindrome (4424426244244).

The spelling of 1223113131023 in words is "one trillion, two hundred twenty-three billion, one hundred thirteen million, one hundred thirty-one thousand, twenty-three".