12311398 has 16 divisors (see below), whose sum is σ = 20638800. Its totient is φ = 5459200.

The previous prime is 12311389. The next prime is 12311401. The reversal of 12311398 is 89311321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5923 + ... + 7726.

It is an arithmetic number, because the mean of its divisors is an integer number (1289925).

Almost surely, 2^12311398 is an apocalyptic number.

12311398 is a deficient number, since it is larger than the sum of its proper divisors (8327402).

12311398 is a wasteful number, since it uses less digits than its factorization.

12311398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13703.

The product of its digits is 1296, while the sum is 28.

The square root of 12311398 is about 3508.7601798926. The cubic root of 12311398 is about 230.9063043363.

The spelling of 12311398 in words is "twelve million, three hundred eleven thousand, three hundred ninety-eight".