12885812343 has 10 divisors (see below), whose sum is σ = 19249176584. Its totient is φ = 8590541508.

The previous prime is 12885812339. The next prime is 12885812383. The reversal of 12885812343 is 34321858821.

12885812343 is a `hidden beast` number, since 1 + 2 + 8 + 8 + 581 + 23 + 43 = 666.

It is not a de Polignac number, because 12885812343 - 2² = 12885812339 is a prime.

It is a super-2 number, since 2×12885812343² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12885812383) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79541971 + ... + 79542132.

Almost surely, 2^12885812343 is an apocalyptic number.

12885812343 is a deficient number, since it is larger than the sum of its proper divisors (6363364241).

12885812343 is an equidigital number, since it uses as much as digits as its factorization.

12885812343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159084115 (or 159084106 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The spelling of 12885812343 in words is "twelve billion, eight hundred eighty-five million, eight hundred twelve thousand, three hundred forty-three".