311004423 has 12 divisors (see below), whose sum is σ = 459676360. Its totient is φ = 202514256.

The previous prime is 311004401. The next prime is 311004427. The reversal of 311004423 is 324400113.

It is not a de Polignac number, because 311004423 - 2²⁰ = 309955847 is a prime.

It is a super-2 number, since 2×311004423² = 193447502251125858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311004396 and 311004405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311004427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 401428 + ... + 402201.

Almost surely, 2^311004423 is an apocalyptic number.

311004423 is a deficient number, since it is larger than the sum of its proper divisors (148671937).

311004423 is a wasteful number, since it uses less digits than its factorization.

311004423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803678 (or 803675 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 311004423 is about 17635.3174907627. The cubic root of 311004423 is about 677.5201070634.

Adding to 311004423 its reverse (324400113), we get a palindrome (635404536).

The spelling of 311004423 in words is "three hundred eleven million, four thousand, four hundred twenty-three".