1344312421 has 8 divisors (see below), whose sum is σ = 1350969984. Its totient is φ = 1337669520.

The previous prime is 1344312407. The next prime is 1344312433. The reversal of 1344312421 is 1242134431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1344312421 - 2⁷ = 1344312293 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 (1344612421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209856 + ... + 216166.

It is an arithmetic number, because the mean of its divisors is an integer number (168871248).

Almost surely, 2^1344312421 is an apocalyptic number.

It is an amenable number.

1344312421 is a deficient number, since it is larger than the sum of its proper divisors (6657563).

1344312421 is an equidigital number, since it uses as much as digits as its factorization.

1344312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7331.

The product of its digits is 2304, while the sum is 25.

The square root of 1344312421 is about 36664.8663027700. The cubic root of 1344312421 is about 1103.6551744285.

Adding to 1344312421 its reverse (1242134431), we get a palindrome (2586446852).

The spelling of 1344312421 in words is "one billion, three hundred forty-four million, three hundred twelve thousand, four hundred twenty-one".