320131011143442 has 64 divisors (see below), whose sum is σ = 657730604805120. Its totient is φ = 103819211880384.

The previous prime is 320131011143441. The next prime is 320131011143507. The reversal of 320131011143442 is 244341110131023.

It is not an unprimeable number, because it can be changed into a prime (320131011143441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67653448 + ... + 72230540.

It is an arithmetic number, because the mean of its divisors is an integer number (10277040700080).

Almost surely, 2^{320131011143442} is an apocalyptic number.

320131011143442 is an abundant number, since it is smaller than the sum of its proper divisors (337599593661678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320131011143442 is a wasteful number, since it uses less digits than its factorization.

320131011143442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578207.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 320131011143442 its reverse (244341110131023), we get a palindrome (564472121274465).

The spelling of 320131011143442 in words is "three hundred twenty trillion, one hundred thirty-one billion, eleven million, one hundred forty-three thousand, four hundred forty-two".