1323036920 has 16 divisors (see below), whose sum is σ = 2976833160. Its totient is φ = 529214752.

The previous prime is 1323036919. The next prime is 1323036929. The reversal of 1323036920 is 296303231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323036929) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16537922 + ... + 16538001.

Almost surely, 2^1323036920 is an apocalyptic number.

1323036920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323036920 is an abundant number, since it is smaller than the sum of its proper divisors (1653796240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323036920 is a wasteful number, since it uses less digits than its factorization.

1323036920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33075934 (or 33075930 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 1323036920 is about 36373.5744737852. The cubic root of 1323036920 is about 1097.8019246705.

The spelling of 1323036920 in words is "one billion, three hundred twenty-three million, thirty-six thousand, nine hundred twenty".