13021232213131 has 4 divisors (see below), whose sum is σ = 13026724089064. Its totient is φ = 13015740337200.

The previous prime is 13021232213117. The next prime is 13021232213153. The reversal of 13021232213131 is 13131223212031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13021232213131 - 2¹¹ = 13021232211083 is a prime.

It is a super-2 number, since 2×13021232213131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13021232213096 and 13021232213105.

It is not an unprimeable number, because it can be changed into a prime (13021232513131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2745934410 + ... + 2745939151.

It is an arithmetic number, because the mean of its divisors is an integer number (3256681022266).

Almost surely, 2^{13021232213131} is an apocalyptic number.

13021232213131 is a deficient number, since it is larger than the sum of its proper divisors (5491875933).

13021232213131 is an equidigital number, since it uses as much as digits as its factorization.

13021232213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491875932.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 13021232213131 its reverse (13131223212031), we get a palindrome (26152455425162).

The spelling of 13021232213131 in words is "thirteen trillion, twenty-one billion, two hundred thirty-two million, two hundred thirteen thousand, one hundred thirty-one".