12445133154421 has 8 divisors (see below), whose sum is σ = 13576546051488. Its totient is φ = 11313726450000.

The previous prime is 12445133154409. The next prime is 12445133154427.

12445133154421 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 12445133154421 - 2¹¹ = 12445133152373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445133154427) 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, 3319231 + ... + 5992291.

It is an arithmetic number, because the mean of its divisors is an integer number (1697068256436).

Almost surely, 2^{12445133154421} is an apocalyptic number.

12445133154421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12445133154421 is a deficient number, since it is larger than the sum of its proper divisors (1131412897067).

12445133154421 is a wasteful number, since it uses less digits than its factorization.

12445133154421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096323.

The product of its digits is 230400, while the sum is 40.

It can be divided in two parts, 1244513 and 3154421, that added together give a palindrome (4398934).

The spelling of 12445133154421 in words is "twelve trillion, four hundred forty-five billion, one hundred thirty-three million, one hundred fifty-four thousand, four hundred twenty-one".