431112331 has 16 divisors (see below), whose sum is σ = 470377600. Its totient is φ = 392750208.

The previous prime is 431112287. The next prime is 431112373. The reversal of 431112331 is 133211134.

It is a cyclic number.

It is not a de Polignac number, because 431112331 - 2⁹ = 431111819 is a prime.

It is a super-2 number, since 2×431112331² = 371715683880507122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431112299 and 431112308.

It is not an unprimeable number, because it can be changed into a prime (431112131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519625 + ... + 520453.

It is an arithmetic number, because the mean of its divisors is an integer number (29398600).

Almost surely, 2^431112331 is an apocalyptic number.

431112331 is a deficient number, since it is larger than the sum of its proper divisors (39265269).

431112331 is a wasteful number, since it uses less digits than its factorization.

431112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its digits is 216, while the sum is 19.

The square root of 431112331 is about 20763.2447127129. The cubic root of 431112331 is about 755.4345004209.

Adding to 431112331 its reverse (133211134), we get a palindrome (564323465).

The spelling of 431112331 in words is "four hundred thirty-one million, one hundred twelve thousand, three hundred thirty-one".