1001123245303 has 4 divisors (see below), whose sum is σ = 1011444103600. Its totient is φ = 990802387008.

The previous prime is 1001123245279. The next prime is 1001123245313. The reversal of 1001123245303 is 3035423211001.

It is a happy number.

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-1001123245303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001123245313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5160429003 + ... + 5160429196.

It is an arithmetic number, because the mean of its divisors is an integer number (252861025900).

Almost surely, 2^{1001123245303} is an apocalyptic number.

1001123245303 is a deficient number, since it is larger than the sum of its proper divisors (10320858297).

1001123245303 is an equidigital number, since it uses as much as digits as its factorization.

1001123245303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320858296.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 1001123245303 its reverse (3035423211001), we get a palindrome (4036546456304).

The spelling of 1001123245303 in words is "one trillion, one billion, one hundred twenty-three million, two hundred forty-five thousand, three hundred three".