12112507471 has 4 divisors (see below), whose sum is σ = 12166823872. Its totient is φ = 12058191072.

The previous prime is 12112507423. The next prime is 12112507489. The reversal of 12112507471 is 17470521121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17470521121 = 17 ⋅1027677713.

It is a cyclic number.

It is not a de Polignac number, because 12112507471 - 2¹⁷ = 12112376399 is a prime.

It is a super-3 number, since 3×12112507471³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112007471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27157866 + ... + 27158311.

It is an arithmetic number, because the mean of its divisors is an integer number (3041705968).

Almost surely, 2^12112507471 is an apocalyptic number.

12112507471 is a deficient number, since it is larger than the sum of its proper divisors (54316401).

12112507471 is an equidigital number, since it uses as much as digits as its factorization.

12112507471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54316400.

The product of its (nonzero) digits is 3920, while the sum is 31.

The spelling of 12112507471 in words is "twelve billion, one hundred twelve million, five hundred seven thousand, four hundred seventy-one".