431130340432 has 80 divisors (see below), whose sum is σ = 921460022784. Its totient is φ = 193778240000.

The previous prime is 431130340429. The next prime is 431130340463. The reversal of 431130340432 is 234043031134.

It is a self number, because there is not a number n which added to its sum of digits gives 431130340432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14152257 + ... + 14182687.

Almost surely, 2^431130340432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431130340432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460730011392).

431130340432 is an abundant number, since it is smaller than the sum of its proper divisors (490329682352).

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

431130340432 is a wasteful number, since it uses less digits than its factorization.

431130340432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31348 (or 31342 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 431130340432 its reverse (234043031134), we get a palindrome (665173371566).

The spelling of 431130340432 in words is "four hundred thirty-one billion, one hundred thirty million, three hundred forty thousand, four hundred thirty-two".