431325421040 has 20 divisors (see below), whose sum is σ = 1002831604104. Its totient is φ = 172530168384.

The previous prime is 431325421039. The next prime is 431325421067. The reversal of 431325421040 is 40124523134.

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

It is a junction number, because it is equal to n+sod(n) for n = 431325420994 and 431325421012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695783802 + ... + 2695783961.

Almost surely, 2^431325421040 is an apocalyptic number.

431325421040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431325421040 is an abundant number, since it is smaller than the sum of its proper divisors (571506183064).

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

431325421040 is a wasteful number, since it uses less digits than its factorization.

431325421040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5391567776 (or 5391567770 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 431325421040 its reverse (40124523134), we get a palindrome (471449944174).

The spelling of 431325421040 in words is "four hundred thirty-one billion, three hundred twenty-five million, four hundred twenty-one thousand, forty".