431213113 has 16 divisors (see below), whose sum is σ = 466502400. Its totient is φ = 397249920.

The previous prime is 431213089. The next prime is 431213129. The reversal of 431213113 is 311312134.

It is a cyclic number.

It is not a de Polignac number, because 431213113 - 2⁹ = 431212601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431213173) 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, 302320 + ... + 303742.

It is an arithmetic number, because the mean of its divisors is an integer number (29156400).

Almost surely, 2^431213113 is an apocalyptic number.

It is an amenable number.

431213113 is a deficient number, since it is larger than the sum of its proper divisors (35289287).

431213113 is a wasteful number, since it uses less digits than its factorization.

431213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872.

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

The square root of 431213113 is about 20765.6715037102. The cubic root of 431213113 is about 755.4933623171.

Adding to 431213113 its reverse (311312134), we get a palindrome (742525247).

The spelling of 431213113 in words is "four hundred thirty-one million, two hundred thirteen thousand, one hundred thirteen".