12345012343 has 4 divisors (see below), whose sum is σ = 12346642800. Its totient is φ = 12343381888.

The previous prime is 12345012331. The next prime is 12345012359. The reversal of 12345012343 is 34321054321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12345012343 - 2⁹ = 12345011831 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345019343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803818 + ... + 819031.

It is an arithmetic number, because the mean of its divisors is an integer number (3086660700).

Almost surely, 2^12345012343 is an apocalyptic number.

12345012343 is a deficient number, since it is larger than the sum of its proper divisors (1630457).

12345012343 is an equidigital number, since it uses as much as digits as its factorization.

12345012343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630456.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 12345012343 its reverse (34321054321), we get a palindrome (46666066664).

The spelling of 12345012343 in words is "twelve billion, three hundred forty-five million, twelve thousand, three hundred forty-three".