12145113011 has 4 divisors (see below), whose sum is σ = 12190262400. Its totient is φ = 12099963624.

The previous prime is 12145112999. The next prime is 12145113023. The reversal of 12145113011 is 11031154121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12145112999) and next prime (12145113023).

It is a cyclic number.

It is not a de Polignac number, because 12145113011 - 2¹⁴ = 12145096627 is a prime.

It is a super-2 number, since 2×12145113011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12145113041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22574291 + ... + 22574828.

It is an arithmetic number, because the mean of its divisors is an integer number (3047565600).

Almost surely, 2^12145113011 is an apocalyptic number.

12145113011 is a deficient number, since it is larger than the sum of its proper divisors (45149389).

12145113011 is an equidigital number, since it uses as much as digits as its factorization.

12145113011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45149388.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 12145113011 its reverse (11031154121), we get a palindrome (23176267132).

The spelling of 12145113011 in words is "twelve billion, one hundred forty-five million, one hundred thirteen thousand, eleven".