1323653871 has 8 divisors (see below), whose sum is σ = 1786135680. Its totient is φ = 871803992.

The previous prime is 1323653869. The next prime is 1323653899. The reversal of 1323653871 is 1783563231.

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 1323653871 - 2¹ = 1323653869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323653831) 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, 2657691 + ... + 2658188.

It is an arithmetic number, because the mean of its divisors is an integer number (223266960).

Almost surely, 2^1323653871 is an apocalyptic number.

1323653871 is a deficient number, since it is larger than the sum of its proper divisors (462481809).

1323653871 is an equidigital number, since it uses as much as digits as its factorization.

1323653871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315965.

The product of its digits is 90720, while the sum is 39.

The square root of 1323653871 is about 36382.0542438164. The cubic root of 1323653871 is about 1097.9725383890.

The spelling of 1323653871 in words is "one billion, three hundred twenty-three million, six hundred fifty-three thousand, eight hundred seventy-one".