13100723 has 4 divisors (see below), whose sum is σ = 13235880. Its totient is φ = 12965568.

The previous prime is 13100719. The next prime is 13100741. The reversal of 13100723 is 32700131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13100723 - 2² = 13100719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13100783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67433 + ... + 67626.

It is an arithmetic number, because the mean of its divisors is an integer number (3308970).

Almost surely, 2^13100723 is an apocalyptic number.

13100723 is a deficient number, since it is larger than the sum of its proper divisors (135157).

13100723 is an equidigital number, since it uses as much as digits as its factorization.

13100723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135156.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 13100723 is about 3619.4920914405. The cubic root of 13100723 is about 235.7391724828.

Adding to 13100723 its reverse (32700131), we get a palindrome (45800854).

The spelling of 13100723 in words is "thirteen million, one hundred thousand, seven hundred twenty-three".