12231300312 has 384 divisors, whose sum is σ = 44029440000. Its totient is φ = 2971365120.

The previous prime is 12231300299. The next prime is 12231300313. The reversal of 12231300312 is 21300313221.

12231300312 is a `hidden beast` number, since 1 + 22 + 31 + 300 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231300313) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8742189 + ... + 8743587.

It is an arithmetic number, because the mean of its divisors is an integer number (114660000).

Almost surely, 2^12231300312 is an apocalyptic number.

12231300312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12231300312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22014720000).

12231300312 is an abundant number, since it is smaller than the sum of its proper divisors (31798139688).

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

12231300312 is a wasteful number, since it uses less digits than its factorization.

12231300312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12231300312 its reverse (21300313221), we get a palindrome (33531613533).

The spelling of 12231300312 in words is "twelve billion, two hundred thirty-one million, three hundred thousand, three hundred twelve".