10311431 has 4 divisors (see below), whose sum is σ = 11104632. Its totient is φ = 9518232.

The previous prime is 10311421. The next prime is 10311439. The reversal of 10311431 is 13411301.

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-10311431 is a prime.

It is a super-2 number, since 2×10311431² = 212651218535522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396581 + ... + 396606.

It is an arithmetic number, because the mean of its divisors is an integer number (2776158).

Almost surely, 2^10311431 is an apocalyptic number.

10311431 is a deficient number, since it is larger than the sum of its proper divisors (793201).

10311431 is an equidigital number, since it uses as much as digits as its factorization.

10311431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793200.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 10311431 is about 3211.1416972784. The cubic root of 10311431 is about 217.6571709348.

Adding to 10311431 its reverse (13411301), we get a palindrome (23722732).

The spelling of 10311431 in words is "ten million, three hundred eleven thousand, four hundred thirty-one".