2001312103 has 8 divisors (see below), whose sum is σ = 2291445920. Its totient is φ = 1712236320.

The previous prime is 2001312091. The next prime is 2001312107. The reversal of 2001312103 is 3012131002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001312103 is a prime.

It is a super-2 number, since 2×2001312103² = 8010500267228565218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001312107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260448 + ... + 268021.

It is an arithmetic number, because the mean of its divisors is an integer number (286430740).

Almost surely, 2^2001312103 is an apocalyptic number.

2001312103 is a deficient number, since it is larger than the sum of its proper divisors (290133817).

2001312103 is an equidigital number, since it uses as much as digits as its factorization.

2001312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529017.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2001312103 is about 44736.0269022630. The cubic root of 2001312103 is about 1260.1965140290.

Adding to 2001312103 its reverse (3012131002), we get a palindrome (5013443105).

The spelling of 2001312103 in words is "two billion, one million, three hundred twelve thousand, one hundred three".