12313863 has 20 divisors (see below), whose sum is σ = 18677560. Its totient is φ = 8083152.

The previous prime is 12313813. The next prime is 12313877. The reversal of 12313863 is 36831321.

It is a happy number.

It is not a de Polignac number, because 12313863 - 2⁶ = 12313799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313813) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4293 + ... + 6561.

It is an arithmetic number, because the mean of its divisors is an integer number (933878).

Almost surely, 2^12313863 is an apocalyptic number.

12313863 is a deficient number, since it is larger than the sum of its proper divisors (6363697).

12313863 is an equidigital number, since it uses as much as digits as its factorization.

12313863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348 (or 2339 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 12313863 is about 3509.1114259881. Note that the first 3 decimals coincide. The cubic root of 12313863 is about 230.9217140689.

It can be divided in two parts, 123138 and 63, that added together give a square (123201 = 351²).

The spelling of 12313863 in words is "twelve million, three hundred thirteen thousand, eight hundred sixty-three".