1321322341 has 4 divisors (see below), whose sum is σ = 1321405632. Its totient is φ = 1321239052.

The previous prime is 1321322323. The next prime is 1321322357. The reversal of 1321322341 is 1432231231.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1432231231 = 31253 ⋅45827.

It is a cyclic number.

It is not a de Polignac number, because 1321322341 - 2⁵ = 1321322309 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 (1321322311) 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, 9661 + ... + 52306.

It is an arithmetic number, because the mean of its divisors is an integer number (330351408).

Almost surely, 2^1321322341 is an apocalyptic number.

It is an amenable number.

1321322341 is a deficient number, since it is larger than the sum of its proper divisors (83291).

1321322341 is an equidigital number, since it uses as much as digits as its factorization.

1321322341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83290.

The product of its digits is 864, while the sum is 22.

The square root of 1321322341 is about 36349.9978129298. The cubic root of 1321322341 is about 1097.3274904888.

Adding to 1321322341 its reverse (1432231231), we get a palindrome (2753553572).

The spelling of 1321322341 in words is "one billion, three hundred twenty-one million, three hundred twenty-two thousand, three hundred forty-one".