12013113111 has 8 divisors (see below), whose sum is σ = 16197456240. Its totient is φ = 7918756032.

The previous prime is 12013113031. The next prime is 12013113139. The reversal of 12013113111 is 11131131021.

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

It is not a de Polignac number, because 12013113111 - 2¹⁴ = 12013096727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013113181) 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, 22496200 + ... + 22496733.

It is an arithmetic number, because the mean of its divisors is an integer number (2024682030).

Almost surely, 2^12013113111 is an apocalyptic number.

12013113111 is a deficient number, since it is larger than the sum of its proper divisors (4184343129).

12013113111 is an equidigital number, since it uses as much as digits as its factorization.

12013113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44993025.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 12013113111 its reverse (11131131021), we get a palindrome (23144244132).

The spelling of 12013113111 in words is "twelve billion, thirteen million, one hundred thirteen thousand, one hundred eleven".