13100823 has 24 divisors (see below), whose sum is σ = 20791680. Its totient is φ = 7912080.

The previous prime is 13100821. The next prime is 13100887. The reversal of 13100823 is 32800131.

It is not a de Polignac number, because 13100823 - 2¹ = 13100821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13100796 and 13100805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2268 + ... + 5598.

It is an arithmetic number, because the mean of its divisors is an integer number (866320).

Almost surely, 2^13100823 is an apocalyptic number.

13100823 is a deficient number, since it is larger than the sum of its proper divisors (7690857).

13100823 is a wasteful number, since it uses less digits than its factorization.

13100823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379 (or 3376 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 13100823 is about 3619.5059055070. The cubic root of 13100823 is about 235.7397722934.

Adding to 13100823 its reverse (32800131), we get a palindrome (45900954).

The spelling of 13100823 in words is "thirteen million, one hundred thousand, eight hundred twenty-three".