431240112 has 200 divisors, whose sum is σ = 1335956160. Its totient is φ = 133902720.

The previous prime is 431240111. The next prime is 431240113. The reversal of 431240112 is 211042134.

It is an interprime number because it is at equal distance from previous prime (431240111) and next prime (431240113).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (431240111) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2043687 + ... + 2043897.

Almost surely, 2^431240112 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 431240112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667978080).

431240112 is an abundant number, since it is smaller than the sum of its proper divisors (904716048).

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

431240112 is a wasteful number, since it uses less digits than its factorization.

431240112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 431240112 is about 20766.3215808674. The cubic root of 431240112 is about 755.5091295708.

Adding to 431240112 its reverse (211042134), we get a palindrome (642282246).

The spelling of 431240112 in words is "four hundred thirty-one million, two hundred forty thousand, one hundred twelve".