1123134221003 has 4 divisors (see below), whose sum is σ = 1123136566800. Its totient is φ = 1123131875208.

The previous prime is 1123134220993. The next prime is 1123134221051. The reversal of 1123134221003 is 3001224313211.

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 1123134221003 - 2¹⁰ = 1123134219979 is a prime.

It is a super-2 number, since 2×1123134221003² (a number of 25 digits) contains 22 as substring.

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 1123134221003.

It is not an unprimeable number, because it can be changed into a prime (1123134221603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167375 + ... + 1508072.

It is an arithmetic number, because the mean of its divisors is an integer number (280784141700).

Almost surely, 2^{1123134221003} is an apocalyptic number.

1123134221003 is a deficient number, since it is larger than the sum of its proper divisors (2345797).

1123134221003 is an equidigital number, since it uses as much as digits as its factorization.

1123134221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345796.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1123134221003 its reverse (3001224313211), we get a palindrome (4124358534214).

The spelling of 1123134221003 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-four million, two hundred twenty-one thousand, three".