12111452513 has 8 divisors (see below), whose sum is σ = 12373029120. Its totient is φ = 11850037920.

The previous prime is 12111452501. The next prime is 12111452533. The reversal of 12111452513 is 31525411121.

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 12111452513 - 2¹⁰ = 12111451489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12111452533) 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, 117173 + ... + 194813.

It is an arithmetic number, because the mean of its divisors is an integer number (1546628640).

Almost surely, 2^12111452513 is an apocalyptic number.

It is an amenable number.

12111452513 is a deficient number, since it is larger than the sum of its proper divisors (261576607).

12111452513 is an equidigital number, since it uses as much as digits as its factorization.

12111452513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81007.

The product of its digits is 1200, while the sum is 26.

Adding to 12111452513 its reverse (31525411121), we get a palindrome (43636863634).

The spelling of 12111452513 in words is "twelve billion, one hundred eleven million, four hundred fifty-two thousand, five hundred thirteen".