12111011011013 has 4 divisors (see below), whose sum is σ = 12637576707168. Its totient is φ = 11584445314860.

The previous prime is 12111011011007. The next prime is 12111011011031. The reversal of 12111011011013 is 31011011011121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12111011011013 - 2¹⁸ = 12111010748869 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 (12111011017013) 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, 263282848043 + ... + 263282848088.

It is an arithmetic number, because the mean of its divisors is an integer number (3159394176792).

Almost surely, 2^{12111011011013} is an apocalyptic number.

It is an amenable number.

12111011011013 is a deficient number, since it is larger than the sum of its proper divisors (526565696155).

12111011011013 is an equidigital number, since it uses as much as digits as its factorization.

12111011011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526565696154.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 12111011011013 its reverse (31011011011121), we get a palindrome (43122022022134).

The spelling of 12111011011013 in words is "twelve trillion, one hundred eleven billion, eleven million, eleven thousand, thirteen".