12310305 has 16 divisors (see below), whose sum is σ = 22510464. Its totient is φ = 5627520.

The previous prime is 12310303. The next prime is 12310321. The reversal of 12310305 is 50301321.

It is a happy number.

12310305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12310305 - 2¹ = 12310303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12310301) 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, 58516 + ... + 58725.

It is an arithmetic number, because the mean of its divisors is an integer number (1406904).

Almost surely, 2^12310305 is an apocalyptic number.

12310305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12310305 is a deficient number, since it is larger than the sum of its proper divisors (10200159).

12310305 is a wasteful number, since it uses less digits than its factorization.

12310305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117256.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 12310305 is about 3508.6044234140. The cubic root of 12310305 is about 230.8994708838.

Adding to 12310305 its reverse (50301321), we get a palindrome (62611626).

The spelling of 12310305 in words is "twelve million, three hundred ten thousand, three hundred five".