13412521731 has 16 divisors (see below), whose sum is σ = 20552313600. Its totient is φ = 7621478688.

The previous prime is 13412521729. The next prime is 13412521753. The reversal of 13412521731 is 13712521431.

It is not a de Polignac number, because 13412521731 - 2¹ = 13412521729 is a prime.

It is a super-3 number, since 3×13412521731³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (13412521531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780296 + ... + 1787813.

It is an arithmetic number, because the mean of its divisors is an integer number (1284519600).

Almost surely, 2^13412521731 is an apocalyptic number.

13412521731 is a deficient number, since it is larger than the sum of its proper divisors (7139791869).

13412521731 is a wasteful number, since it uses less digits than its factorization.

13412521731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568298.

The product of its digits is 5040, while the sum is 30.

The spelling of 13412521731 in words is "thirteen billion, four hundred twelve million, five hundred twenty-one thousand, seven hundred thirty-one".