311344103 has 16 divisors (see below), whose sum is σ = 377271360. Its totient is φ = 250822656.

The previous prime is 311344091. The next prime is 311344139. The reversal of 311344103 is 301443113.

It is not a de Polignac number, because 311344103 - 2¹⁰ = 311343079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311344303) 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, 118775 + ... + 121367.

It is an arithmetic number, because the mean of its divisors is an integer number (23579460).

Almost surely, 2^311344103 is an apocalyptic number.

311344103 is a deficient number, since it is larger than the sum of its proper divisors (65927257).

311344103 is a wasteful number, since it uses less digits than its factorization.

311344103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3626.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 311344103 is about 17644.9455368953. The cubic root of 311344103 is about 677.7666805065.

Adding to 311344103 its reverse (301443113), we get a palindrome (612787216).

The spelling of 311344103 in words is "three hundred eleven million, three hundred forty-four thousand, one hundred three".