1323041999 has 8 divisors (see below), whose sum is σ = 1342783872. Its totient is φ = 1303344000.

The previous prime is 1323041977. The next prime is 1323042011. The reversal of 1323041999 is 9991403231.

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 1323041999 - 2¹⁶ = 1322976463 is a prime.

It is a super-2 number, since 2×1323041999² = 3500880262235832002, 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 (1323041939) 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, 52499 + ... + 73499.

It is an arithmetic number, because the mean of its divisors is an integer number (167847984).

Almost surely, 2^1323041999 is an apocalyptic number.

1323041999 is a deficient number, since it is larger than the sum of its proper divisors (19741873).

1323041999 is an equidigital number, since it uses as much as digits as its factorization.

1323041999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21937.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 1323041999 is about 36373.6442908873. The cubic root of 1323041999 is about 1097.8033294509.

The spelling of 1323041999 in words is "one billion, three hundred twenty-three million, forty-one thousand, nine hundred ninety-nine".