442103313 has 4 divisors (see below), whose sum is σ = 589471088. Its totient is φ = 294735540.

The previous prime is 442103303. The next prime is 442103393. The reversal of 442103313 is 313301244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 442103313 - 2⁵ = 442103281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442103313.

It is not an unprimeable number, because it can be changed into a prime (442103303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73683883 + ... + 73683888.

It is an arithmetic number, because the mean of its divisors is an integer number (147367772).

Almost surely, 2^442103313 is an apocalyptic number.

It is an amenable number.

442103313 is a deficient number, since it is larger than the sum of its proper divisors (147367775).

442103313 is a wasteful number, since it uses less digits than its factorization.

442103313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147367774.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 442103313 is about 21026.2529472086. The cubic root of 442103313 is about 761.8005054328.

Adding to 442103313 its reverse (313301244), we get a palindrome (755404557).

The spelling of 442103313 in words is "four hundred forty-two million, one hundred three thousand, three hundred thirteen".