311112003 has 8 divisors (see below), whose sum is σ = 415090000. Its totient is φ = 207271008.

The previous prime is 311111981. The next prime is 311112013. The reversal of 311112003 is 300211113.

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

It is not a de Polignac number, because 311112003 - 2¹⁴ = 311095619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311112003.

It is not an unprimeable number, because it can be changed into a prime (311112013) 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, 28828 + ... + 38121.

It is an arithmetic number, because the mean of its divisors is an integer number (51886250).

Almost surely, 2^311112003 is an apocalyptic number.

311112003 is a deficient number, since it is larger than the sum of its proper divisors (103977997).

311112003 is a wasteful number, since it uses less digits than its factorization.

311112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68501.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 311112003 is about 17638.3673564194. The cubic root of 311112003 is about 677.5982187183.

Adding to 311112003 its reverse (300211113), we get a palindrome (611323116).

The spelling of 311112003 in words is "three hundred eleven million, one hundred twelve thousand, three".