10311409 has 2 divisors, whose sum is σ = 10311410. Its totient is φ = 10311408.

The previous prime is 10311407. The next prime is 10311421. The reversal of 10311409 is 90411301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9437184 + 874225 = 3072^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 10311409 - 2¹ = 10311407 is a prime.

Together with 10311407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10311407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155704 + 5155705.

It is an arithmetic number, because the mean of its divisors is an integer number (5155705).

Almost surely, 2^10311409 is an apocalyptic number.

It is an amenable number.

10311409 is a deficient number, since it is larger than the sum of its proper divisors (1).

10311409 is an equidigital number, since it uses as much as digits as its factorization.

10311409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 10311409 is about 3211.1382717037. The cubic root of 10311409 is about 217.6570161402.

Subtracting from 10311409 its product of nonzero digits (108), we obtain a palindrome (10311301).

The spelling of 10311409 in words is "ten million, three hundred eleven thousand, four hundred nine".