431129112 has 64 divisors (see below), whose sum is σ = 1190868480. Its totient is φ = 129372672.

The previous prime is 431129099. The next prime is 431129119. The reversal of 431129112 is 211921134.

It is a super-2 number, since 2×431129112² = 371744622427817088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431129119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13588 + ... + 32355.

It is an arithmetic number, because the mean of its divisors is an integer number (18607320).

Almost surely, 2^431129112 is an apocalyptic number.

It is an amenable number.

431129112 is an abundant number, since it is smaller than the sum of its proper divisors (759739368).

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

431129112 is a wasteful number, since it uses less digits than its factorization.

431129112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45992 (or 45988 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

The square root of 431129112 is about 20763.6488122873. The cubic root of 431129112 is about 755.4443020286. Note that the first 3 decimals are identical.

The spelling of 431129112 in words is "four hundred thirty-one million, one hundred twenty-nine thousand, one hundred twelve".