1323305122500 has 135 divisors (see below), whose sum is σ = 4180483708401. Its totient is φ = 352835352000.

The previous prime is 1323305122493. The next prime is 1323305122541. The reversal of 1323305122500 is 52215033231.

It is a happy number.

The square root of 1323305122500 is 1150350.

It is a perfect power (a square), and thus also a powerful number.

1323305122500 is a `hidden beast` number, since 1 + 3 + 2 + 3 + 30 + 5 + 122 + 500 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 318387090564 + 1004918031936 = 564258^2 + 1002456^2 .

It is a super-2 number, since 2×1323305122500² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 172548666 + ... + 172556334.

Almost surely, 2^{1323305122500} is an apocalyptic number.

1323305122500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323305122500 is the 1150350-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323305122500

1323305122500 is an abundant number, since it is smaller than the sum of its proper divisors (2857178585901).

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

1323305122500 is an frugal number, since it uses more digits than its factorization.

1323305122500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15368 (or 7679 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 1323305122500 in words is "one trillion, three hundred twenty-three billion, three hundred five million, one hundred twenty-two thousand, five hundred".