13521021141 has 8 divisors (see below), whose sum is σ = 18060988384. Its totient is φ = 8997534000.

The previous prime is 13521021139. The next prime is 13521021181. The reversal of 13521021141 is 14112012531.

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

It is not a de Polignac number, because 13521021141 - 2¹ = 13521021139 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 (13521021181) 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, 4118110 + ... + 4121391.

It is an arithmetic number, because the mean of its divisors is an integer number (2257623548).

Almost surely, 2^13521021141 is an apocalyptic number.

It is an amenable number.

13521021141 is a deficient number, since it is larger than the sum of its proper divisors (4539967243).

13521021141 is an equidigital number, since it uses as much as digits as its factorization.

13521021141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8240051.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 13521021141 its reverse (14112012531), we get a palindrome (27633033672).

The spelling of 13521021141 in words is "thirteen billion, five hundred twenty-one million, twenty-one thousand, one hundred forty-one".