12421324311145 has 8 divisors (see below), whose sum is σ = 14905610224200. Its totient is φ = 9937045415040.

The previous prime is 12421324311131. The next prime is 12421324311157. The reversal of 12421324311145 is 54111342312421.

It can be written as a sum of positive squares in 4 ways, for example, as 1342937957904 + 11078386353241 = 1158852^2 + 3328421^2 .

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

It is not a de Polignac number, because 12421324311145 - 2¹⁹ = 12421323786857 is a prime.

It is a super-2 number, since 2×12421324311145² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12421324311145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3658431 + ... + 6182779.

It is an arithmetic number, because the mean of its divisors is an integer number (1863201278025).

Almost surely, 2^{12421324311145} is an apocalyptic number.

It is an amenable number.

12421324311145 is a deficient number, since it is larger than the sum of its proper divisors (2484285913055).

12421324311145 is an equidigital number, since it uses as much as digits as its factorization.

12421324311145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508475.

The product of its digits is 23040, while the sum is 34.

Adding to 12421324311145 its reverse (54111342312421), we get a palindrome (66532666623566).

The spelling of 12421324311145 in words is "twelve trillion, four hundred twenty-one billion, three hundred twenty-four million, three hundred eleven thousand, one hundred forty-five".