12350442521 has 4 divisors (see below), whose sum is σ = 12534777552. Its totient is φ = 12166107492.

The previous prime is 12350442431. The next prime is 12350442539. The reversal of 12350442521 is 12524405321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12350442521 - 2¹⁸ = 12350180377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12350442571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92167415 + ... + 92167548.

It is an arithmetic number, because the mean of its divisors is an integer number (3133694388).

Almost surely, 2^12350442521 is an apocalyptic number.

It is an amenable number.

12350442521 is a deficient number, since it is larger than the sum of its proper divisors (184335031).

12350442521 is an equidigital number, since it uses as much as digits as its factorization.

12350442521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184335030.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 12350442521 its reverse (12524405321), we get a palindrome (24874847842).

The spelling of 12350442521 in words is "twelve billion, three hundred fifty million, four hundred forty-two thousand, five hundred twenty-one".