431221331332 has 48 divisors (see below), whose sum is σ = 832105721664. Its totient is φ = 193902320000.

The previous prime is 431221331323. The next prime is 431221331353. The reversal of 431221331332 is 233133122134.

It is a self number, because there is not a number n which added to its sum of digits gives 431221331332.

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, 5207283 + ... + 5289445.

It is an arithmetic number, because the mean of its divisors is an integer number (17335535868).

Almost surely, 2^431221331332 is an apocalyptic number.

It is an amenable number.

431221331332 is a deficient number, since it is larger than the sum of its proper divisors (400884390332).

431221331332 is a wasteful number, since it uses less digits than its factorization.

431221331332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83460 (or 83458 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

Adding to 431221331332 its reverse (233133122134), we get a palindrome (664354453466).

The spelling of 431221331332 in words is "four hundred thirty-one billion, two hundred twenty-one million, three hundred thirty-one thousand, three hundred thirty-two".