12344333140 has 24 divisors (see below), whose sum is σ = 26817000840. Its totient is φ = 4767466368.

The previous prime is 12344333123. The next prime is 12344333143. The reversal of 12344333140 is 4133344321.

It can be written as a sum of positive squares in 4 ways, for example, as 1303787664 + 11040545476 = 36108^2 + 105074^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12344333099 and 12344333108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344333143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10641087 + ... + 10642246.

It is an arithmetic number, because the mean of its divisors is an integer number (1117375035).

Almost surely, 2^12344333140 is an apocalyptic number.

12344333140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12344333140 is an abundant number, since it is smaller than the sum of its proper divisors (14472667700).

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

12344333140 is a wasteful number, since it uses less digits than its factorization.

12344333140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21283371 (or 21283369 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 12344333140 its reverse (4133344321), we get a palindrome (16477677461).

The spelling of 12344333140 in words is "twelve billion, three hundred forty-four million, three hundred thirty-three thousand, one hundred forty".