13011123 has 16 divisors (see below), whose sum is σ = 18291456. Its totient is φ = 8210400.

The previous prime is 13011121. The next prime is 13011133. The reversal of 13011123 is 32111031.

It is not a de Polignac number, because 13011123 - 2¹ = 13011121 is a prime.

It is a super-2 number, since 2×13011123² = 338578643442258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13011099 and 13011108.

It is not an unprimeable number, because it can be changed into a prime (13011121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6036 + ... + 7902.

It is an arithmetic number, because the mean of its divisors is an integer number (1143216).

Almost surely, 2^13011123 is an apocalyptic number.

13011123 is a deficient number, since it is larger than the sum of its proper divisors (5280333).

13011123 is a wasteful number, since it uses less digits than its factorization.

13011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994.

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

The square root of 13011123 is about 3607.0934282328. The cubic root of 13011123 is about 235.2005109261.

Adding to 13011123 its reverse (32111031), we get a palindrome (45122154).

The spelling of 13011123 in words is "thirteen million, eleven thousand, one hundred twenty-three".