1323171047442 has 16 divisors (see below), whose sum is σ = 2802009277152. Its totient is φ = 415112485440.

The previous prime is 1323171047381. The next prime is 1323171047453. The reversal of 1323171047442 is 2447401713231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323171047442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6486132484 + ... + 6486132687.

It is an arithmetic number, because the mean of its divisors is an integer number (175125579822).

Almost surely, 2^{1323171047442} is an apocalyptic number.

1323171047442 is an abundant number, since it is smaller than the sum of its proper divisors (1478838229710).

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

1323171047442 is a wasteful number, since it uses less digits than its factorization.

1323171047442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12972265193.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 1323171047442 in words is "one trillion, three hundred twenty-three billion, one hundred seventy-one million, forty-seven thousand, four hundred forty-two".