1323404122442 has 4 divisors (see below), whose sum is σ = 1985106183666. Its totient is φ = 661702061220.

The previous prime is 1323404122429. The next prime is 1323404122471. The reversal of 1323404122442 is 2442214043231.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1054977548641 + 268426573801 = 1027121^2 + 518099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1323404122399 and 1323404122408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330851030609 + ... + 330851030612.

Almost surely, 2^{1323404122442} is an apocalyptic number.

1323404122442 is a deficient number, since it is larger than the sum of its proper divisors (661702061224).

1323404122442 is an equidigital number, since it uses as much as digits as its factorization.

1323404122442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661702061223.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1323404122442 its reverse (2442214043231), we get a palindrome (3765618165673).

The spelling of 1323404122442 in words is "one trillion, three hundred twenty-three billion, four hundred four million, one hundred twenty-two thousand, four hundred forty-two".