431121332 has 24 divisors (see below), whose sum is σ = 763578816. Its totient is φ = 212966208.

The previous prime is 431121331. The next prime is 431121347. The reversal of 431121332 is 233121134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431121331) 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, 224408 + ... + 226320.

It is an arithmetic number, because the mean of its divisors is an integer number (31815784).

Almost surely, 2^431121332 is an apocalyptic number.

It is an amenable number.

431121332 is a deficient number, since it is larger than the sum of its proper divisors (332457484).

431121332 is a wasteful number, since it uses less digits than its factorization.

431121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567 (or 2565 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 431121332 is about 20763.4614647944. The cubic root of 431121332 is about 755.4397578431.

Adding to 431121332 its reverse (233121134), we get a palindrome (664242466).

It can be divided in two parts, 43112 and 1332, that added together give a palindrome (44444).

The spelling of 431121332 in words is "four hundred thirty-one million, one hundred twenty-one thousand, three hundred thirty-two".