1123421244403 has 8 divisors (see below), whose sum is σ = 1129710209600. Its totient is φ = 1117149822720.

The previous prime is 1123421244391. The next prime is 1123421244431. The reversal of 1123421244403 is 3044421243211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123421244403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123421244703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4257438 + ... + 4513603.

It is an arithmetic number, because the mean of its divisors is an integer number (141213776200).

Almost surely, 2^{1123421244403} is an apocalyptic number.

1123421244403 is a deficient number, since it is larger than the sum of its proper divisors (6288965197).

1123421244403 is an equidigital number, since it uses as much as digits as its factorization.

1123421244403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8771757.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1123421244403 its reverse (3044421243211), we get a palindrome (4167842487614).

The spelling of 1123421244403 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-one million, two hundred forty-four thousand, four hundred three".