1342144321 has 4 divisors (see below), whose sum is σ = 1533879232. Its totient is φ = 1150409412.

The previous prime is 1342144303. The next prime is 1342144333. The reversal of 1342144321 is 1234412431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1234412431 = 7 ⋅176344633.

It is a cyclic number.

It is not a de Polignac number, because 1342144321 - 2¹⁷ = 1342013249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342144301) 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, 95867445 + ... + 95867458.

It is an arithmetic number, because the mean of its divisors is an integer number (383469808).

Almost surely, 2^1342144321 is an apocalyptic number.

It is an amenable number.

1342144321 is a deficient number, since it is larger than the sum of its proper divisors (191734911).

1342144321 is an equidigital number, since it uses as much as digits as its factorization.

1342144321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191734910.

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

The square root of 1342144321 is about 36635.2879202552. The cubic root of 1342144321 is about 1103.0615320867.

Adding to 1342144321 its reverse (1234412431), we get a palindrome (2576556752).

The spelling of 1342144321 in words is "one billion, three hundred forty-two million, one hundred forty-four thousand, three hundred twenty-one".