12435337121 has 8 divisors (see below), whose sum is σ = 12580093800. Its totient is φ = 12290692480.

The previous prime is 12435337099. The next prime is 12435337139. The reversal of 12435337121 is 12173353421.

12435337121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1079451025 + 11355886096 = 32855^2 + 106564^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12435337121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12435237121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206615 + ... + 259923.

It is an arithmetic number, because the mean of its divisors is an integer number (1572511725).

Almost surely, 2^12435337121 is an apocalyptic number.

It is an amenable number.

12435337121 is a deficient number, since it is larger than the sum of its proper divisors (144756679).

12435337121 is an equidigital number, since it uses as much as digits as its factorization.

12435337121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56019.

The product of its digits is 15120, while the sum is 32.

The spelling of 12435337121 in words is "twelve billion, four hundred thirty-five million, three hundred thirty-seven thousand, one hundred twenty-one".