13123012012111 has 8 divisors (see below), whose sum is σ = 13694411443680. Its totient is φ = 12551682054912.

The previous prime is 13123012012027. The next prime is 13123012012127. The reversal of 13123012012111 is 11121021032131.

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 13123012012111 - 2¹¹ = 13123012010063 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 (13123012019111) 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, 16982406 + ... + 17738323.

It is an arithmetic number, because the mean of its divisors is an integer number (1711801430460).

Almost surely, 2^{13123012012111} is an apocalyptic number.

13123012012111 is a deficient number, since it is larger than the sum of its proper divisors (571399431569).

13123012012111 is a wasteful number, since it uses less digits than its factorization.

13123012012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34737185.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 13123012012111 its reverse (11121021032131), we get a palindrome (24244033044242).

The spelling of 13123012012111 in words is "thirteen trillion, one hundred twenty-three billion, twelve million, twelve thousand, one hundred eleven".