431144011 has 4 divisors (see below), whose sum is σ = 431475192. Its totient is φ = 430812832.

The previous prime is 431143969. The next prime is 431144099. The reversal of 431144011 is 110441134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431144011 - 2⁷ = 431143883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431144011.

It is not an unprimeable number, because it can be changed into a prime (431114011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163630 + ... + 166243.

It is an arithmetic number, because the mean of its divisors is an integer number (107868798).

Almost surely, 2^431144011 is an apocalyptic number.

431144011 is a deficient number, since it is larger than the sum of its proper divisors (331181).

431144011 is a wasteful number, since it uses less digits than its factorization.

431144011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331180.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 431144011 is about 20764.0075852423. The cubic root of 431144011 is about 755.4530041665.

Adding to 431144011 its reverse (110441134), we get a palindrome (541585145).

The spelling of 431144011 in words is "four hundred thirty-one million, one hundred forty-four thousand, eleven".