13215021141 has 12 divisors (see below), whose sum is σ = 20496767712. Its totient is φ = 7551440568.

The previous prime is 13215021137. The next prime is 13215021163. The reversal of 13215021141 is 14112051231.

13215021141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13215021141 - 2² = 13215021137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215011141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44948905 + ... + 44949198.

It is an arithmetic number, because the mean of its divisors is an integer number (1708063976).

Almost surely, 2^13215021141 is an apocalyptic number.

It is an amenable number.

13215021141 is a deficient number, since it is larger than the sum of its proper divisors (7281746571).

13215021141 is an equidigital number, since it uses as much as digits as its factorization.

13215021141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89898120 (or 89898113 counting only the distinct ones).

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

Adding to 13215021141 its reverse (14112051231), we get a palindrome (27327072372).

The spelling of 13215021141 in words is "thirteen billion, two hundred fifteen million, twenty-one thousand, one hundred forty-one".