431340113 has 8 divisors (see below), whose sum is σ = 448072680. Its totient is φ = 414731520.

The previous prime is 431340101. The next prime is 431340157. The reversal of 431340113 is 311043134.

It can be written as a sum of positive squares in 4 ways, for example, as 38031889 + 393308224 = 6167^2 + 19832^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431340113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431340313) 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, 23870 + ... + 37847.

It is an arithmetic number, because the mean of its divisors is an integer number (56009085).

Almost surely, 2^431340113 is an apocalyptic number.

It is an amenable number.

431340113 is a deficient number, since it is larger than the sum of its proper divisors (16732567).

431340113 is a wasteful number, since it uses less digits than its factorization.

431340113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61987.

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

The square root of 431340113 is about 20768.7292100408. The cubic root of 431340113 is about 755.5675238212.

Adding to 431340113 its reverse (311043134), we get a palindrome (742383247).

The spelling of 431340113 in words is "four hundred thirty-one million, three hundred forty thousand, one hundred thirteen".