1231310003 has 16 divisors (see below), whose sum is σ = 1546871040. Its totient is φ = 952130400.

The previous prime is 1231309997. The next prime is 1231310011. The reversal of 1231310003 is 3000131321.

It is a cyclic number.

It is not a de Polignac number, because 1231310003 - 2⁸ = 1231309747 is a prime.

It is a super-2 number, since 2×1231310003² = 3032248646975720018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231310003.

It is not an unprimeable number, because it can be changed into a prime (1231310303) 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, 50948 + ... + 71121.

It is an arithmetic number, because the mean of its divisors is an integer number (96679440).

Almost surely, 2^1231310003 is an apocalyptic number.

1231310003 is a deficient number, since it is larger than the sum of its proper divisors (315561037).

1231310003 is a wasteful number, since it uses less digits than its factorization.

1231310003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122218.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1231310003 is about 35090.0271159770. The cubic root of 1231310003 is about 1071.8215117713.

Adding to 1231310003 its reverse (3000131321), we get a palindrome (4231441324).

The spelling of 1231310003 in words is "one billion, two hundred thirty-one million, three hundred ten thousand, three".