13811023 has 2 divisors, whose sum is σ = 13811024. Its totient is φ = 13811022.

The previous prime is 13810999. The next prime is 13811029. The reversal of 13811023 is 32011831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13811023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13811029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6905511 + 6905512.

It is an arithmetic number, because the mean of its divisors is an integer number (6905512).

Almost surely, 2^13811023 is an apocalyptic number.

13811023 is a deficient number, since it is larger than the sum of its proper divisors (1).

13811023 is an equidigital number, since it uses as much as digits as its factorization.

13811023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 13811023 is about 3716.3184739739. The cubic root of 13811023 is about 239.9248781091.

Adding to 13811023 its reverse (32011831), we get a palindrome (45822854).

The spelling of 13811023 in words is "thirteen million, eight hundred eleven thousand, twenty-three".