13125445121005 has 32 divisors (see below), whose sum is σ = 18022789467648. Its totient is φ = 8989217740800.

The previous prime is 13125445120993. The next prime is 13125445121011. The reversal of 13125445121005 is 50012154452131.

It is not a de Polignac number, because 13125445121005 - 2⁹ = 13125445120493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632754664 + ... + 632775406.

It is an arithmetic number, because the mean of its divisors is an integer number (563212170864).

Almost surely, 2^{13125445121005} is an apocalyptic number.

It is an amenable number.

13125445121005 is a deficient number, since it is larger than the sum of its proper divisors (4897344346643).

13125445121005 is a wasteful number, since it uses less digits than its factorization.

13125445121005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42157.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 13125445121005 its reverse (50012154452131), we get a palindrome (63137599573136).

The spelling of 13125445121005 in words is "thirteen trillion, one hundred twenty-five billion, four hundred forty-five million, one hundred twenty-one thousand, five".