1323003203100 has 216 divisors, whose sum is σ = 4236291547488. Its totient is φ = 345252902400.

The previous prime is 1323003203047. The next prime is 1323003203129. The reversal of 1323003203100 is 13023003231.

1323003203100 is a `hidden beast` number, since 1 + 3 + 2 + 30 + 0 + 320 + 310 + 0 = 666.

It is a super-2 number, since 2×1323003203100² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10754137 + ... + 10876463.

It is an arithmetic number, because the mean of its divisors is an integer number (19612460868).

Almost surely, 2^{1323003203100} is an apocalyptic number.

1323003203100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323003203100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2118145773744).

1323003203100 is an abundant number, since it is smaller than the sum of its proper divisors (2913288344388).

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

1323003203100 is a wasteful number, since it uses less digits than its factorization.

1323003203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122605 (or 122595 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 1323003203100 its reverse (13023003231), we get a palindrome (1336026206331).

The spelling of 1323003203100 in words is "one trillion, three hundred twenty-three billion, three million, two hundred three thousand, one hundred".