13111023 has 8 divisors (see below), whose sum is σ = 17499136. Its totient is φ = 8731800.

The previous prime is 13111013. The next prime is 13111027. The reversal of 13111023 is 32011131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13111023 - 2⁵ = 13110991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2928 + ... + 5898.

It is an arithmetic number, because the mean of its divisors is an integer number (2187392).

Almost surely, 2^13111023 is an apocalyptic number.

13111023 is a deficient number, since it is larger than the sum of its proper divisors (4388113).

13111023 is a wasteful number, since it uses less digits than its factorization.

13111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 13111023 is about 3620.9146634518. The cubic root of 13111023 is about 235.8009369471.

Adding to 13111023 its reverse (32011131), we get a palindrome (45122154).

The spelling of 13111023 in words is "thirteen million, one hundred eleven thousand, twenty-three".