12142072471 has 4 divisors (see below), whose sum is σ = 12371168232. Its totient is φ = 11912976712.

The previous prime is 12142072463. The next prime is 12142072487. The reversal of 12142072471 is 17427024121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17427024121 = 13 ⋅1340540317.

It is a cyclic number.

It is not a de Polignac number, because 12142072471 - 2³ = 12142072463 is a prime.

It is a super-3 number, since 3×12142072471³ (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 (12142070471) 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, 114547801 + ... + 114547906.

It is an arithmetic number, because the mean of its divisors is an integer number (3092792058).

Almost surely, 2^12142072471 is an apocalyptic number.

12142072471 is a deficient number, since it is larger than the sum of its proper divisors (229095761).

12142072471 is an equidigital number, since it uses as much as digits as its factorization.

12142072471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229095760.

The product of its (nonzero) digits is 6272, while the sum is 31.

Adding to 12142072471 its reverse (17427024121), we get a palindrome (29569096592).

The spelling of 12142072471 in words is "twelve billion, one hundred forty-two million, seventy-two thousand, four hundred seventy-one".