431313101 has 2 divisors, whose sum is σ = 431313102. Its totient is φ = 431313100.

The previous prime is 431313097. The next prime is 431313133. The reversal of 431313101 is 101313134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430521001 + 792100 = 20749^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 431313101 - 2² = 431313097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 431313101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431313151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215656550 + 215656551.

It is an arithmetic number, because the mean of its divisors is an integer number (215656551).

Almost surely, 2^431313101 is an apocalyptic number.

It is an amenable number.

431313101 is a deficient number, since it is larger than the sum of its proper divisors (1).

431313101 is an equidigital number, since it uses as much as digits as its factorization.

431313101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 431313101 is about 20768.0788952662. The cubic root of 431313101 is about 755.5517514138.

Adding to 431313101 its reverse (101313134), we get a palindrome (532626235).

The spelling of 431313101 in words is "four hundred thirty-one million, three hundred thirteen thousand, one hundred one".