1323299989 has 4 divisors (see below), whose sum is σ = 1443600000. Its totient is φ = 1202999980.

The previous prime is 1323299987. The next prime is 1323300031. The reversal of 1323299989 is 9899923231.

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.

It is a cyclic number.

It is not a de Polignac number, because 1323299989 - 2¹ = 1323299987 is a prime.

It is a super-2 number, since 2×1323299989² = 3502245721774800242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323299987) 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, 60149989 + ... + 60150010.

It is an arithmetic number, because the mean of its divisors is an integer number (360900000).

Almost surely, 2^1323299989 is an apocalyptic number.

It is an amenable number.

1323299989 is a deficient number, since it is larger than the sum of its proper divisors (120300011).

1323299989 is a wasteful number, since it uses less digits than its factorization.

1323299989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120300010.

The product of its digits is 1889568, while the sum is 55.

The square root of 1323299989 is about 36377.1905044906. The cubic root of 1323299989 is about 1097.8746811475.

The spelling of 1323299989 in words is "one billion, three hundred twenty-three million, two hundred ninety-nine thousand, nine hundred eighty-nine".