1320403142 has 8 divisors (see below), whose sum is σ = 1985076936. Its totient is φ = 658710832.

The previous prime is 1320403129. The next prime is 1320403153. The reversal of 1320403142 is 2413040231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744263 + ... + 746034.

It is an arithmetic number, because the mean of its divisors is an integer number (248134617).

Almost surely, 2^1320403142 is an apocalyptic number.

1320403142 is a deficient number, since it is larger than the sum of its proper divisors (664673794).

1320403142 is a wasteful number, since it uses less digits than its factorization.

1320403142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490742.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1320403142 is about 36337.3518848031. The cubic root of 1320403142 is about 1097.0729736591.

Adding to 1320403142 its reverse (2413040231), we get a palindrome (3733443373).

The spelling of 1320403142 in words is "one billion, three hundred twenty million, four hundred three thousand, one hundred forty-two".