431124101 has 4 divisors (see below), whose sum is σ = 439258572. Its totient is φ = 422989632.

The previous prime is 431124077. The next prime is 431124137. The reversal of 431124101 is 101421134.

431124101 = 1964² + 1965² + ... + 2069².

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 264843076 + 166281025 = 16274^2 + 12895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431124101 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 431124101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431124191) 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, 4067156 + ... + 4067261.

It is an arithmetic number, because the mean of its divisors is an integer number (109814643).

Almost surely, 2^431124101 is an apocalyptic number.

It is an amenable number.

431124101 is a deficient number, since it is larger than the sum of its proper divisors (8134471).

431124101 is an equidigital number, since it uses as much as digits as its factorization.

431124101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8134470.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 431124101 is about 20763.5281443208. The cubic root of 431124101 is about 755.4413751822.

Adding to 431124101 its reverse (101421134), we get a palindrome (532545235).

The spelling of 431124101 in words is "four hundred thirty-one million, one hundred twenty-four thousand, one hundred one".