12006210523 has 16 divisors (see below), whose sum is σ = 12968202240.
Its totient is φ = 11078164800.
The previous prime is 12006210521. The next prime is 12006210529. The reversal of 12006210523 is 32501260021.
Adding to 12006210523 its reverse (32501260021), we get a palindrome (44507470544).
It is a cyclic number.
It is not a de Polignac number, because 12006210523 - 21 = 12006210521 is a prime.
It is a super-2 number, since 2×120062105232 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12006210494 and 12006210503.
It is not an unprimeable number, because it can be changed into a prime (12006210521) 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 15 ways as a sum of consecutive naturals, for example, 460158 + ... + 485548.
It is an arithmetic number, because the mean of its divisors is an integer number (810512640).
Almost surely, 212006210523 is an apocalyptic number.
12006210523 is a deficient number, since it is larger than the sum of its proper divisors (961991717).
12006210523 is a wasteful number, since it uses less digits than its factorization.
12006210523 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26058.
The product of its (nonzero) digits is 720, while the sum is 22.
The spelling of 12006210523 in words is "twelve billion, six million, two hundred ten thousand, five hundred twenty-three".