1344313231 has 4 divisors (see below), whose sum is σ = 1344805000. Its totient is φ = 1343821464.

The previous prime is 1344313163. The next prime is 1344313277. The reversal of 1344313231 is 1323134431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1344313231 - 2¹¹ = 1344311183 is a prime.

It is a super-2 number, since 2×1344313231² = 3614356126083318722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1344313196 and 1344313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344313331) 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, 241761 + ... + 247258.

It is an arithmetic number, because the mean of its divisors is an integer number (336201250).

Almost surely, 2^1344313231 is an apocalyptic number.

1344313231 is a deficient number, since it is larger than the sum of its proper divisors (491769).

1344313231 is an equidigital number, since it uses as much as digits as its factorization.

1344313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491768.

The product of its digits is 2592, while the sum is 25.

The square root of 1344313231 is about 36664.8773487653. The cubic root of 1344313231 is about 1103.6553960934.

Adding to 1344313231 its reverse (1323134431), we get a palindrome (2667447662).

The spelling of 1344313231 in words is "one billion, three hundred forty-four million, three hundred thirteen thousand, two hundred thirty-one".