1323000100 has 18 divisors (see below), whose sum is σ = 2870910434. Its totient is φ = 529200000.

The previous prime is 1323000073. The next prime is 1323000103. The reversal of 1323000100 is 10003231.

It can be written as a sum of positive squares in 3 ways, for example, as 260370496 + 1062629604 = 16136^2 + 32598^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1323000103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6614901 + ... + 6615100.

Almost surely, 2^1323000100 is an apocalyptic number.

1323000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323000100 is an abundant number, since it is smaller than the sum of its proper divisors (1547910334).

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

1323000100 is a wasteful number, since it uses less digits than its factorization.

1323000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13230015 (or 13230008 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1323000100 is about 36373.0683335899. The cubic root of 1323000100 is about 1097.7917406660.

Adding to 1323000100 its reverse (10003231), we get a palindrome (1333003331).

The spelling of 1323000100 in words is "one billion, three hundred twenty-three million, one hundred", and thus it is an aban number.