320244331442 has 16 divisors (see below), whose sum is σ = 549088995840. Its totient is φ = 137222892288.

The previous prime is 320244331397. The next prime is 320244331457. The reversal of 320244331442 is 244133442023.

It is a junction number, because it is equal to n+sod(n) for n = 320244331399 and 320244331408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975778 + ... + 2131709.

It is an arithmetic number, because the mean of its divisors is an integer number (34318062240).

Almost surely, 2^320244331442 is an apocalyptic number.

320244331442 is a deficient number, since it is larger than the sum of its proper divisors (228844664398).

320244331442 is a wasteful number, since it uses less digits than its factorization.

320244331442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113065.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 320244331442 its reverse (244133442023), we get a palindrome (564377773465).

The spelling of 320244331442 in words is "three hundred twenty billion, two hundred forty-four million, three hundred thirty-one thousand, four hundred forty-two".