1321042 has 4 divisors (see below), whose sum is σ = 1981566. Its totient is φ = 660520.

The previous prime is 1321031. The next prime is 1321063. The reversal of 1321042 is 2401231.

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., 1320201 + 841 = 1149^2 + 29^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330259 + ... + 330262.

2^1321042 is an apocalyptic number.

1321042 is a deficient number, since it is larger than the sum of its proper divisors (660524).

1321042 is an equidigital number, since it uses as much as digits as its factorization.

1321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660523.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1321042 is about 1149.3659121446. The cubic root of 1321042 is about 109.7249879438.

Adding to 1321042 its reverse (2401231), we get a palindrome (3722273).

The spelling of 1321042 in words is "one million, three hundred twenty-one thousand, forty-two".