32431204304020 has 24 divisors (see below), whose sum is σ = 68108681083464. Its totient is φ = 12971881332096.

The previous prime is 32431204304003. The next prime is 32431204304021. The reversal of 32431204304020 is 2040340213423.

It can be written as a sum of positive squares in 4 ways, for example, as 6443048115856 + 25988156188164 = 2538316^2 + 5097858^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32431204304020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32431204304021) 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, 37081279 + ... + 37945798.

It is an arithmetic number, because the mean of its divisors is an integer number (2837861711811).

Almost surely, 2^{32431204304020} is an apocalyptic number.

It is an amenable number.

32431204304020 is an abundant number, since it is smaller than the sum of its proper divisors (35677476779444).

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

32431204304020 is a wasteful number, since it uses less digits than its factorization.

32431204304020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75048699 (or 75048697 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 32431204304020 its reverse (2040340213423), we get a palindrome (34471544517443).

The spelling of 32431204304020 in words is "thirty-two trillion, four hundred thirty-one billion, two hundred four million, three hundred four thousand, twenty".