1323101002320 has 60 divisors (see below), whose sum is σ = 4443414201876. Its totient is φ = 352826933760.

The previous prime is 1323101002319. The next prime is 1323101002339. The reversal of 1323101002320 is 232001013231.

1323101002320 is a `hidden beast` number, since 1 + 32 + 310 + 1 + 0 + 0 + 2 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1019429470224 + 303671532096 = 1009668^2 + 551064^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1323101002293 and 1323101002302.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 918819421 + ... + 918820860.

Almost surely, 2^{1323101002320} is an apocalyptic number.

1323101002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323101002320 is an abundant number, since it is smaller than the sum of its proper divisors (3120313199556).

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

1323101002320 is a wasteful number, since it uses less digits than its factorization.

1323101002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837640300 (or 1837640291 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1323101002320 its reverse (232001013231), we get a palindrome (1555102015551).

The spelling of 1323101002320 in words is "one trillion, three hundred twenty-three billion, one hundred one million, two thousand, three hundred twenty".