1323307533 has 4 divisors (see below), whose sum is σ = 1764410048. Its totient is φ = 882205020.

The previous prime is 1323307511. The next prime is 1323307537. The reversal of 1323307533 is 3357033231.

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 not a de Polignac number, because 1323307533 - 2⁵ = 1323307501 is a prime.

It is a super-2 number, since 2×1323307533² = 3502285653789092178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323307533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323307537) 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, 220551253 + ... + 220551258.

It is an arithmetic number, because the mean of its divisors is an integer number (441102512).

Almost surely, 2^1323307533 is an apocalyptic number.

It is an amenable number.

1323307533 is a deficient number, since it is larger than the sum of its proper divisors (441102515).

1323307533 is an equidigital number, since it uses as much as digits as its factorization.

1323307533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441102514.

The product of its (nonzero) digits is 17010, while the sum is 30.

The square root of 1323307533 is about 36377.2941956930. The cubic root of 1323307533 is about 1097.8767674345.

The spelling of 1323307533 in words is "one billion, three hundred twenty-three million, three hundred seven thousand, five hundred thirty-three".