431111401 has 8 divisors (see below), whose sum is σ = 503182080. Its totient is φ = 361661568.

The previous prime is 431111399. The next prime is 431111413. The reversal of 431111401 is 104111134.

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

It is a cyclic number.

It is not a de Polignac number, because 431111401 - 2¹ = 431111399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431114401) 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, 654856 + ... + 655513.

It is an arithmetic number, because the mean of its divisors is an integer number (62897760).

Almost surely, 2^431111401 is an apocalyptic number.

It is an amenable number.

431111401 is a deficient number, since it is larger than the sum of its proper divisors (72070679).

431111401 is a wasteful number, since it uses less digits than its factorization.

431111401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310423.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 431111401 is about 20763.2223173572. Note that the first 3 decimals coincide. The cubic root of 431111401 is about 755.4339572101.

Adding to 431111401 its reverse (104111134), we get a palindrome (535222535).

The spelling of 431111401 in words is "four hundred thirty-one million, one hundred eleven thousand, four hundred one".