13501123 has 4 divisors (see below), whose sum is σ = 13525920. Its totient is φ = 13476328.

The previous prime is 13501109. The next prime is 13501129. The reversal of 13501123 is 32110531.

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 13501123 - 2⁵ = 13501091 is a prime.

It is a super-2 number, since 2×13501123² = 364560644522258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13501097 and 13501106.

It is not an unprimeable number, because it can be changed into a prime (13501129) 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, 11563 + ... + 12676.

It is an arithmetic number, because the mean of its divisors is an integer number (3381480).

Almost surely, 2^13501123 is an apocalyptic number.

13501123 is a deficient number, since it is larger than the sum of its proper divisors (24797).

13501123 is an equidigital number, since it uses as much as digits as its factorization.

13501123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24796.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 13501123 is about 3674.3874319402. The cubic root of 13501123 is about 238.1167600247.

Adding to 13501123 its reverse (32110531), we get a palindrome (45611654).

The spelling of 13501123 in words is "thirteen million, five hundred one thousand, one hundred twenty-three".