1320432340231 has 4 divisors (see below), whose sum is σ = 1320566635872. Its totient is φ = 1320298044592.

The previous prime is 1320432340219. The next prime is 1320432340261.

It is a happy number.

1320432340231 is nontrivially palindromic in base 10.

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 1320432340231 - 2²⁷ = 1320298122503 is a prime.

It is a super-2 number, since 2×1320432340231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320432340231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320432340261) 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, 67133071 + ... + 67152736.

It is an arithmetic number, because the mean of its divisors is an integer number (330141658968).

Almost surely, 2^{1320432340231} is an apocalyptic number.

1320432340231 is a deficient number, since it is larger than the sum of its proper divisors (134295641).

1320432340231 is an equidigital number, since it uses as much as digits as its factorization.

1320432340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134295640.

The product of its (nonzero) digits is 10368, while the sum is 28.

The spelling of 1320432340231 in words is "one trillion, three hundred twenty billion, four hundred thirty-two million, three hundred forty thousand, two hundred thirty-one".