13211021131 has 8 divisors (see below), whose sum is σ = 16470883584. Its totient is φ = 10294302120.

The previous prime is 13211021099. The next prime is 13211021141. The reversal of 13211021131 is 13112011231.

It is a happy number.

13211021131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13211021131 - 2⁵ = 13211021099 is a prime.

It is a super-2 number, since 2×13211021131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13211021141) 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 7 ways as a sum of consecutive naturals, for example, 85785775 + ... + 85785928.

It is an arithmetic number, because the mean of its divisors is an integer number (2058860448).

Almost surely, 2^13211021131 is an apocalyptic number.

13211021131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13211021131 is a deficient number, since it is larger than the sum of its proper divisors (3259862453).

13211021131 is a wasteful number, since it uses less digits than its factorization.

13211021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171571721.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13211021131 its reverse (13112011231), we get a palindrome (26323032362).

The spelling of 13211021131 in words is "thirteen billion, two hundred eleven million, twenty-one thousand, one hundred thirty-one".