311423103 has 16 divisors (see below), whose sum is σ = 464136960. Its totient is φ = 206369208.

The previous prime is 311423089. The next prime is 311423143. The reversal of 311423103 is 301324113.

311423103 is a `hidden beast` number, since 311 + 42 + 310 + 3 = 666.

It is not a de Polignac number, because 311423103 - 2⁴ = 311423087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311423143) 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, 30025 + ... + 39042.

It is an arithmetic number, because the mean of its divisors is an integer number (29008560).

Almost surely, 2^311423103 is an apocalyptic number.

311423103 is a deficient number, since it is larger than the sum of its proper divisors (152713857).

311423103 is a wasteful number, since it uses less digits than its factorization.

311423103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69243 (or 69237 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 311423103 is about 17647.1839963208. The cubic root of 311423103 is about 677.8240008360.

Adding to 311423103 its reverse (301324113), we get a palindrome (612747216).

The spelling of 311423103 in words is "three hundred eleven million, four hundred twenty-three thousand, one hundred three".