431332002320 has 20 divisors (see below), whose sum is σ = 1002846905580. Its totient is φ = 172532800896.

The previous prime is 431332002319. The next prime is 431332002323. The reversal of 431332002320 is 23200233134.

It can be written as a sum of positive squares in 2 ways, for example, as 323674517776 + 107657484544 = 568924^2 + 328112^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (431332002323) 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, 2695824935 + ... + 2695825094.

It is an arithmetic number, because the mean of its divisors is an integer number (50142345279).

Almost surely, 2^431332002320 is an apocalyptic number.

431332002320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431332002320 is an abundant number, since it is smaller than the sum of its proper divisors (571514903260).

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

431332002320 is a wasteful number, since it uses less digits than its factorization.

431332002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5391650042 (or 5391650036 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 431332002320 its reverse (23200233134), we get a palindrome (454532235454).

The spelling of 431332002320 in words is "four hundred thirty-one billion, three hundred thirty-two million, two thousand, three hundred twenty".