10001312003 has 4 divisors (see below), whose sum is σ = 10006776048. Its totient is φ = 9995847960.

The previous prime is 10001311997. The next prime is 10001312021. The reversal of 10001312003 is 30021310001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30021310001 = 569 ⋅52761529.

It is a cyclic number.

It is not a de Polignac number, because 10001312003 - 2¹² = 10001307907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001312023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2729276 + ... + 2732937.

It is an arithmetic number, because the mean of its divisors is an integer number (2501694012).

Almost surely, 2^10001312003 is an apocalyptic number.

10001312003 is a deficient number, since it is larger than the sum of its proper divisors (5464045).

10001312003 is an equidigital number, since it uses as much as digits as its factorization.

10001312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464044.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 10001312003 its reverse (30021310001), we get a palindrome (40022622004).

The spelling of 10001312003 in words is "ten billion, one million, three hundred twelve thousand, three".