1323001244542 has 4 divisors (see below), whose sum is σ = 1984501866816. Its totient is φ = 661500622270.

The previous prime is 1323001244479. The next prime is 1323001244623. The reversal of 1323001244542 is 2454421003231.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 330750311134 + ... + 330750311137.

It is an arithmetic number, because the mean of its divisors is an integer number (496125466704).

Almost surely, 2^{1323001244542} is an apocalyptic number.

1323001244542 is a deficient number, since it is larger than the sum of its proper divisors (661500622274).

1323001244542 is an equidigital number, since it uses as much as digits as its factorization.

1323001244542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661500622273.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 1323001244542 its reverse (2454421003231), we get a palindrome (3777422247773).

The spelling of 1323001244542 in words is "one trillion, three hundred twenty-three billion, one million, two hundred forty-four thousand, five hundred forty-two".