1320423412443 has 8 divisors (see below), whose sum is σ = 1777657410048. Its totient is φ = 871735844904.

The previous prime is 1320423412393. The next prime is 1320423412457. The reversal of 1320423412443 is 3442143240231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320423412443 - 2¹² = 1320423408347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320422412443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2136607155 + ... + 2136607772.

It is an arithmetic number, because the mean of its divisors is an integer number (222207176256).

Almost surely, 2^{1320423412443} is an apocalyptic number.

1320423412443 is a deficient number, since it is larger than the sum of its proper divisors (457233997605).

1320423412443 is a wasteful number, since it uses less digits than its factorization.

1320423412443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273215033.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 1320423412443 its reverse (3442143240231), we get a palindrome (4762566652674).

The spelling of 1320423412443 in words is "one trillion, three hundred twenty billion, four hundred twenty-three million, four hundred twelve thousand, four hundred forty-three".