320143440102 has 16 divisors (see below), whose sum is σ = 641255552112. Its totient is φ = 106553034720.

The previous prime is 320143440091. The next prime is 320143440109. The reversal of 320143440102 is 201044341023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320143440109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40357033 + ... + 40364964.

It is an arithmetic number, because the mean of its divisors is an integer number (40078472007).

Almost surely, 2^320143440102 is an apocalyptic number.

320143440102 is an abundant number, since it is smaller than the sum of its proper divisors (321112112010).

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

320143440102 is a wasteful number, since it uses less digits than its factorization.

320143440102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80722663.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 320143440102 its reverse (201044341023), we get a palindrome (521187781125).

The spelling of 320143440102 in words is "three hundred twenty billion, one hundred forty-three million, four hundred forty thousand, one hundred two".