31344313 has 32 divisors (see below), whose sum is σ = 42561792. Its totient is φ = 22291200.

The previous prime is 31344307. The next prime is 31344329.

It is a happy number.

31344313 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31344313 - 2²¹ = 29247161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31344373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173083 + ... + 173263.

It is an arithmetic number, because the mean of its divisors is an integer number (1330056).

Almost surely, 2^31344313 is an apocalyptic number.

It is an amenable number.

31344313 is a deficient number, since it is larger than the sum of its proper divisors (11217479).

31344313 is a wasteful number, since it uses less digits than its factorization.

31344313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 1296, while the sum is 22.

The square root of 31344313 is about 5598.5991997999. The cubic root of 31344313 is about 315.2968160563.

It can be divided in two parts, 3134 and 4313, that added together give a palindrome (7447).

The spelling of 31344313 in words is "thirty-one million, three hundred forty-four thousand, three hundred thirteen".