1321342433442 has 64 divisors (see below), whose sum is σ = 2962790833920. Its totient is φ = 436490208000.

The previous prime is 1321342433441. The next prime is 1321342433447. The reversal of 1321342433442 is 2443342431231.

1321342433442 is a `hidden beast` number, since 1 + 3 + 213 + 4 + 2 + 433 + 4 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1321342433397 and 1321342433406.

It is not an unprimeable number, because it can be changed into a prime (1321342433441) 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 31 ways as a sum of consecutive naturals, for example, 3240378 + ... + 3625290.

It is an arithmetic number, because the mean of its divisors is an integer number (46293606780).

Almost surely, 2^{1321342433442} is an apocalyptic number.

1321342433442 is an abundant number, since it is smaller than the sum of its proper divisors (1641448400478).

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

1321342433442 is a wasteful number, since it uses less digits than its factorization.

1321342433442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385496 (or 385490 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

Adding to 1321342433442 its reverse (2443342431231), we get a palindrome (3764684864673).

The spelling of 1321342433442 in words is "one trillion, three hundred twenty-one billion, three hundred forty-two million, four hundred thirty-three thousand, four hundred forty-two".