12340613412 has 60 divisors (see below), whose sum is σ = 34158510540. Its totient is φ = 3871563264.

The previous prime is 12340613399. The next prime is 12340613413. The reversal of 12340613412 is 21431604321.

It is a happy number.

12340613412 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 0 + 613 + 41 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7135856676 + 5204756736 = 84474^2 + 72144^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12340613413) 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, 1114737 + ... + 1125752.

It is an arithmetic number, because the mean of its divisors is an integer number (569308509).

Almost surely, 2^12340613412 is an apocalyptic number.

12340613412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12340613412 is an abundant number, since it is smaller than the sum of its proper divisors (21817897128).

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

12340613412 is a wasteful number, since it uses less digits than its factorization.

12340613412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240522 (or 2240511 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Subtracting 12340613412 from its reverse (21431604321), we obtain a palindrome (9090990909).

The spelling of 12340613412 in words is "twelve billion, three hundred forty million, six hundred thirteen thousand, four hundred twelve".