12423134571 has 8 divisors (see below), whose sum is σ = 16724997120. Its totient is φ = 8201680872.

The previous prime is 12423134569. The next prime is 12423134621. The reversal of 12423134571 is 17543132421.

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

It is not a de Polignac number, because 12423134571 - 2¹ = 12423134569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12423134771) 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, 20101851 + ... + 20102468.

It is an arithmetic number, because the mean of its divisors is an integer number (2090624640).

Almost surely, 2^12423134571 is an apocalyptic number.

12423134571 is a deficient number, since it is larger than the sum of its proper divisors (4301862549).

12423134571 is a wasteful number, since it uses less digits than its factorization.

12423134571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40204425.

The product of its digits is 20160, while the sum is 33.

Adding to 12423134571 its reverse (17543132421), we get a palindrome (29966266992).

The spelling of 12423134571 in words is "twelve billion, four hundred twenty-three million, one hundred thirty-four thousand, five hundred seventy-one".