1123220212003 has 4 divisors (see below), whose sum is σ = 1125646174048. Its totient is φ = 1120794249960.

The previous prime is 1123220211989. The next prime is 1123220212019. The reversal of 1123220212003 is 3002120223211.

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-1123220212003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123220212033) 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, 1212980328 + ... + 1212981253.

It is an arithmetic number, because the mean of its divisors is an integer number (281411543512).

Almost surely, 2^{1123220212003} is an apocalyptic number.

1123220212003 is a deficient number, since it is larger than the sum of its proper divisors (2425962045).

1123220212003 is an equidigital number, since it uses as much as digits as its factorization.

1123220212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425962044.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1123220212003 its reverse (3002120223211), we get a palindrome (4125340435214).

The spelling of 1123220212003 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, two hundred twelve thousand, three".