31344343 has 4 divisors (see below), whose sum is σ = 31370920. Its totient is φ = 31317768.

The previous prime is 31344329. The next prime is 31344349. The reversal of 31344343 is 34344313.

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-31344343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344349) 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, 11433 + ... + 13906.

It is an arithmetic number, because the mean of its divisors is an integer number (7842730).

Almost surely, 2^31344343 is an apocalyptic number.

31344343 is a deficient number, since it is larger than the sum of its proper divisors (26577).

31344343 is a wasteful number, since it uses less digits than its factorization.

31344343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26576.

The product of its digits is 5184, while the sum is 25.

The square root of 31344343 is about 5598.6018790409. The cubic root of 31344343 is about 315.2969166477.

Adding to 31344343 its reverse (34344313), we get a palindrome (65688656).

The spelling of 31344343 in words is "thirty-one million, three hundred forty-four thousand, three hundred forty-three".