12313078 has 4 divisors (see below), whose sum is σ = 18469620. Its totient is φ = 6156538.

The previous prime is 12313043. The next prime is 12313097. The reversal of 12313078 is 87031321.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12313078² = 303223779668168, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078268 + ... + 3078271.

It is an arithmetic number, because the mean of its divisors is an integer number (4617405).

Almost surely, 2^12313078 is an apocalyptic number.

12313078 is a deficient number, since it is larger than the sum of its proper divisors (6156542).

12313078 is an equidigital number, since it uses as much as digits as its factorization.

12313078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156541.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12313078 is about 3508.9995725278. Note that the first 3 decimals coincide. The cubic root of 12313078 is about 230.9168069330.

Adding to 12313078 its reverse (87031321), we get a palindrome (99344399).

The spelling of 12313078 in words is "twelve million, three hundred thirteen thousand, seventy-eight".