1320243430242 has 64 divisors (see below), whose sum is σ = 2928803223168. Its totient is φ = 393374016000.

The previous prime is 1320243430237. The next prime is 1320243430249. The reversal of 1320243430242 is 2420343420231.

It is not an unprimeable number, because it can be changed into a prime (1320243430249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11444892 + ... + 11559672.

It is an arithmetic number, because the mean of its divisors is an integer number (45762550362).

Almost surely, 2^{1320243430242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320243430242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464401611584).

1320243430242 is an abundant number, since it is smaller than the sum of its proper divisors (1608559792926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320243430242 is a wasteful number, since it uses less digits than its factorization.

1320243430242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117715.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 1320243430242 its reverse (2420343420231), we get a palindrome (3740586850473).

The spelling of 1320243430242 in words is "one trillion, three hundred twenty billion, two hundred forty-three million, four hundred thirty thousand, two hundred forty-two".