1321072327 has 4 divisors (see below), whose sum is σ = 1323166576. Its totient is φ = 1318978080.

The previous prime is 1321072307. The next prime is 1321072339. The reversal of 1321072327 is 7232701231.

It is a happy number.

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 1321072327 - 2¹⁹ = 1320548039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321072295 and 1321072304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321072307) 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, 1046178 + ... + 1047439.

It is an arithmetic number, because the mean of its divisors is an integer number (330791644).

Almost surely, 2^1321072327 is an apocalyptic number.

1321072327 is a deficient number, since it is larger than the sum of its proper divisors (2094249).

1321072327 is an equidigital number, since it uses as much as digits as its factorization.

1321072327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094248.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 1321072327 is about 36346.5586679124. The cubic root of 1321072327 is about 1097.2582758513.

Adding to 1321072327 its reverse (7232701231), we get a palindrome (8553773558).

The spelling of 1321072327 in words is "one billion, three hundred twenty-one million, seventy-two thousand, three hundred twenty-seven".