1323039905 has 16 divisors (see below), whose sum is σ = 1749135168. Its totient is φ = 952680000.

The previous prime is 1323039889. The next prime is 1323039911. The reversal of 1323039905 is 5099303231.

It is a happy number.

1323039905 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1323039905 - 2⁴ = 1323039889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113531 + ... + 124640.

It is an arithmetic number, because the mean of its divisors is an integer number (109320948).

Almost surely, 2^1323039905 is an apocalyptic number.

It is an amenable number.

1323039905 is a deficient number, since it is larger than the sum of its proper divisors (426095263).

1323039905 is a wasteful number, since it uses less digits than its factorization.

1323039905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238288.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 1323039905 is about 36373.6155062980. The cubic root of 1323039905 is about 1097.8027502802.

It can be divided in two parts, 13230 and 39905, that added together give a palindrome (53135).

The spelling of 1323039905 in words is "one billion, three hundred twenty-three million, thirty-nine thousand, nine hundred five".