1323253320 has 32 divisors (see below), whose sum is σ = 3969760320. Its totient is φ = 352867520.

The previous prime is 1323253303. The next prime is 1323253331. The reversal of 1323253320 is 233523231.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5513436 + ... + 5513675.

It is an arithmetic number, because the mean of its divisors is an integer number (124055010).

Almost surely, 2^1323253320 is an apocalyptic number.

1323253320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323253320 is an abundant number, since it is smaller than the sum of its proper divisors (2646507000).

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

1323253320 is a wasteful number, since it uses less digits than its factorization.

1323253320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11027125 (or 11027121 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 1323253320 is about 36376.5490391818. The cubic root of 1323253320 is about 1097.8617746974.

Adding to 1323253320 its reverse (233523231), we get a palindrome (1556776551).

The spelling of 1323253320 in words is "one billion, three hundred twenty-three million, two hundred fifty-three thousand, three hundred twenty".