1342224320321 has 4 divisors (see below), whose sum is σ = 1342260821700. Its totient is φ = 1342187818944.

The previous prime is 1342224320303. The next prime is 1342224320341. The reversal of 1342224320321 is 1230234222431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 699924658225 + 642299662096 = 836615^2 + 801436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342224320321 is a prime.

It is a super-2 number, since 2×1342224320321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342224320341) 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, 18195476 + ... + 18269093.

It is an arithmetic number, because the mean of its divisors is an integer number (335565205425).

Almost surely, 2^{1342224320321} is an apocalyptic number.

It is an amenable number.

1342224320321 is a deficient number, since it is larger than the sum of its proper divisors (36501379).

1342224320321 is an equidigital number, since it uses as much as digits as its factorization.

1342224320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36501378.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1342224320321 its reverse (1230234222431), we get a palindrome (2572458542752).

The spelling of 1342224320321 in words is "one trillion, three hundred forty-two billion, two hundred twenty-four million, three hundred twenty thousand, three hundred twenty-one".