1232340432321 has 4 divisors (see below), whose sum is σ = 1643120576432. Its totient is φ = 821560288212.

The previous prime is 1232340432247. The next prime is 1232340432371.

It is a happy number.

1232340432321 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1232340432321 - 2¹⁴ = 1232340415937 is a prime.

It is a super-2 number, since 2×1232340432321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232340432371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205390072051 + ... + 205390072056.

It is an arithmetic number, because the mean of its divisors is an integer number (410780144108).

Almost surely, 2^{1232340432321} is an apocalyptic number.

It is an amenable number.

1232340432321 is a deficient number, since it is larger than the sum of its proper divisors (410780144111).

1232340432321 is an equidigital number, since it uses as much as digits as its factorization.

1232340432321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410780144110.

The product of its (nonzero) digits is 20736, while the sum is 30.

It can be divided in two parts, 1232340 and 432321, that added together give a palindrome (1664661).

The spelling of 1232340432321 in words is "one trillion, two hundred thirty-two billion, three hundred forty million, four hundred thirty-two thousand, three hundred twenty-one".