1003123311323 has 16 divisors (see below), whose sum is σ = 1147531841280. Its totient is φ = 858991503456.

The previous prime is 1003123311317. The next prime is 1003123311329. The reversal of 1003123311323 is 3231133213001.

It is an interprime number because it is at equal distance from previous prime (1003123311317) and next prime (1003123311329).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1003123311323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003123311329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32497565 + ... + 32528417.

It is an arithmetic number, because the mean of its divisors is an integer number (71720740080).

Almost surely, 2^{1003123311323} is an apocalyptic number.

1003123311323 is a deficient number, since it is larger than the sum of its proper divisors (144408529957).

1003123311323 is a wasteful number, since it uses less digits than its factorization.

1003123311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35186.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1003123311323 its reverse (3231133213001), we get a palindrome (4234256524324).

The spelling of 1003123311323 in words is "one trillion, three billion, one hundred twenty-three million, three hundred eleven thousand, three hundred twenty-three".