13123013111 has 8 divisors (see below), whose sum is σ = 14137394544. Its totient is φ = 12109334400.

The previous prime is 13123013077. The next prime is 13123013149. The reversal of 13123013111 is 11131032131.

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

It is a cyclic number.

It is not a de Polignac number, because 13123013111 - 2¹⁰ = 13123012087 is a prime.

It is a super-2 number, since 2×13123013111² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13123013111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123013611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136565 + ... + 211886.

It is an arithmetic number, because the mean of its divisors is an integer number (1767174318).

Almost surely, 2^13123013111 is an apocalyptic number.

13123013111 is a deficient number, since it is larger than the sum of its proper divisors (1014381433).

13123013111 is a wasteful number, since it uses less digits than its factorization.

13123013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351361.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 13123013111 its reverse (11131032131), we get a palindrome (24254045242).

The spelling of 13123013111 in words is "thirteen billion, one hundred twenty-three million, thirteen thousand, one hundred eleven".