1323100200123 has 18 divisors (see below), whose sum is σ = 2069464417956. Its totient is φ = 814215506832.

The previous prime is 1323100200109. The next prime is 1323100200137. The reversal of 1323100200123 is 3210020013231.

1323100200123 is a `hidden beast` number, since 1 + 32 + 310 + 0 + 200 + 123 = 666.

It is an interprime number because it is at equal distance from previous prime (1323100200109) and next prime (1323100200137).

It is not a de Polignac number, because 1323100200123 - 2⁵ = 1323100200091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323100200096 and 1323100200105.

It is not an unprimeable number, because it can be changed into a prime (1323100207123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 434942661 + ... + 434945702.

It is an arithmetic number, because the mean of its divisors is an integer number (114970245442).

Almost surely, 2^{1323100200123} is an apocalyptic number.

1323100200123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1323100200123 is a deficient number, since it is larger than the sum of its proper divisors (746364217833).

1323100200123 is a wasteful number, since it uses less digits than its factorization.

1323100200123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869888395 (or 869888379 counting only the distinct ones).

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

Adding to 1323100200123 its reverse (3210020013231), we get a palindrome (4533120213354).

The spelling of 1323100200123 in words is "one trillion, three hundred twenty-three billion, one hundred million, two hundred thousand, one hundred twenty-three".