431400011 has 4 divisors (see below), whose sum is σ = 493028592. Its totient is φ = 369771432.

The previous prime is 431400001. The next prime is 431400017. The reversal of 431400011 is 110004134.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431400011 is a prime.

It is a super-2 number, since 2×431400011² = 372211938981600242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431400017) 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, 30814280 + ... + 30814293.

It is an arithmetic number, because the mean of its divisors is an integer number (123257148).

Almost surely, 2^431400011 is an apocalyptic number.

431400011 is a deficient number, since it is larger than the sum of its proper divisors (61628581).

431400011 is an equidigital number, since it uses as much as digits as its factorization.

431400011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61628580.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 431400011 is about 20770.1711836951. The cubic root of 431400011 is about 755.6024961377.

Adding to 431400011 its reverse (110004134), we get a palindrome (541404145).

The spelling of 431400011 in words is "four hundred thirty-one million, four hundred thousand, eleven".