13521124505 has 16 divisors (see below), whose sum is σ = 19634037120. Its totient is φ = 8726237952.

The previous prime is 13521124501. The next prime is 13521124523. The reversal of 13521124505 is 50542112531.

It is a cyclic number.

It is not a de Polignac number, because 13521124505 - 2² = 13521124501 is a prime.

It is a super-2 number, since 2×13521124505² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13521124501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11361695 + ... + 11362884.

It is an arithmetic number, because the mean of its divisors is an integer number (1227127320).

Almost surely, 2^13521124505 is an apocalyptic number.

It is an amenable number.

13521124505 is a deficient number, since it is larger than the sum of its proper divisors (6112912615).

13521124505 is a wasteful number, since it uses less digits than its factorization.

13521124505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22724608.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 13521124505 in words is "thirteen billion, five hundred twenty-one million, one hundred twenty-four thousand, five hundred five".