1232001343 has 4 divisors (see below), whose sum is σ = 1232097480. Its totient is φ = 1231905208.

The previous prime is 1232001313. The next prime is 1232001347. The reversal of 1232001343 is 3431002321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3431002321 = 907 ⋅3782803.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232001343 is a prime.

It is a Duffinian number.

It is a zygodrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 1232001343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232001347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25228 + ... + 55681.

It is an arithmetic number, because the mean of its divisors is an integer number (308024370).

Almost surely, 2^1232001343 is an apocalyptic number.

1232001343 is a deficient number, since it is larger than the sum of its proper divisors (96137).

1232001343 is an equidigital number, since it uses as much as digits as its factorization.

1232001343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96136.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1232001343 is about 35099.8766806950. The cubic root of 1232001343 is about 1072.0220717289.

Adding to 1232001343 its reverse (3431002321), we get a palindrome (4663003664).

The spelling of 1232001343 in words is "one billion, two hundred thirty-two million, one thousand, three hundred forty-three".