1203113231003 has 4 divisors (see below), whose sum is σ = 1208105402328. Its totient is φ = 1198121059680.

The previous prime is 1203113230961. The next prime is 1203113231059. The reversal of 1203113231003 is 3001323113021.

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 1203113231003 - 2⁸ = 1203113230747 is a prime.

It is a super-2 number, since 2×1203113231003² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203113234003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496085301 + ... + 2496085782.

It is an arithmetic number, because the mean of its divisors is an integer number (302026350582).

Almost surely, 2^{1203113231003} is an apocalyptic number.

1203113231003 is a deficient number, since it is larger than the sum of its proper divisors (4992171325).

1203113231003 is an equidigital number, since it uses as much as digits as its factorization.

1203113231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992171324.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1203113231003 its reverse (3001323113021), we get a palindrome (4204436344024).

The spelling of 1203113231003 in words is "one trillion, two hundred three billion, one hundred thirteen million, two hundred thirty-one thousand, three".