13020131132331 has 4 divisors (see below), whose sum is σ = 17360174843112. Its totient is φ = 8680087421552.

The previous prime is 13020131132317. The next prime is 13020131132357. The reversal of 13020131132331 is 13323113102031.

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 13020131132331 - 2⁵ = 13020131132299 is a prime.

It is a super-2 number, since 2×13020131132331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13020131132231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2170021855386 + ... + 2170021855391.

It is an arithmetic number, because the mean of its divisors is an integer number (4340043710778).

Almost surely, 2^{13020131132331} is an apocalyptic number.

13020131132331 is a deficient number, since it is larger than the sum of its proper divisors (4340043710781).

13020131132331 is an equidigital number, since it uses as much as digits as its factorization.

13020131132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340043710780.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 13020131132331 its reverse (13323113102031), we get a palindrome (26343244234362).

The spelling of 13020131132331 in words is "thirteen trillion, twenty billion, one hundred thirty-one million, one hundred thirty-two thousand, three hundred thirty-one".