12320001043 has 16 divisors (see below), whose sum is σ = 14325615360. Its totient is φ = 10375965216.

The previous prime is 12320001041. The next prime is 12320001073. The reversal of 12320001043 is 34010002321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12320001043 - 2¹ = 12320001041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12320001041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016980 + ... + 1029022.

It is an arithmetic number, because the mean of its divisors is an integer number (895350960).

Almost surely, 2^12320001043 is an apocalyptic number.

12320001043 is a deficient number, since it is larger than the sum of its proper divisors (2005614317).

12320001043 is a wasteful number, since it uses less digits than its factorization.

12320001043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14586.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12320001043 its reverse (34010002321), we get a palindrome (46330003364).

The spelling of 12320001043 in words is "twelve billion, three hundred twenty million, one thousand, forty-three".