12312356 has 48 divisors (see below), whose sum is σ = 26006400. Its totient is φ = 4988928.

The previous prime is 12312353. The next prime is 12312359. The reversal of 12312356 is 65321321.

It is an interprime number because it is at equal distance from previous prime (12312353) and next prime (12312359).

It is a super-2 number, since 2×12312356² = 303188220541472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12312353) 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, 47780 + ... + 48036.

It is an arithmetic number, because the mean of its divisors is an integer number (541800).

Almost surely, 2^12312356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12312356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13003200).

12312356 is an abundant number, since it is smaller than the sum of its proper divisors (13694044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12312356 is a wasteful number, since it uses less digits than its factorization.

12312356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 354 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 12312356 is about 3508.8966926942. The cubic root of 12312356 is about 230.9122934341.

Adding to 12312356 its reverse (65321321), we get a palindrome (77633677).

The spelling of 12312356 in words is "twelve million, three hundred twelve thousand, three hundred fifty-six".