13221100031131 has 8 divisors (see below), whose sum is σ = 13383777644640. Its totient is φ = 13059082368192.

The previous prime is 13221100031123. The next prime is 13221100031147. The reversal of 13221100031131 is 13113000112231.

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 13221100031131 - 2³ = 13221100031123 is a prime.

It is a super-2 number, since 2×13221100031131² (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 = 13221100031099 and 13221100031108.

It is not an unprimeable number, because it can be changed into a prime (13221100031171) 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, 164947330 + ... + 165027463.

It is an arithmetic number, because the mean of its divisors is an integer number (1672972205580).

Almost surely, 2^{13221100031131} is an apocalyptic number.

13221100031131 is a deficient number, since it is larger than the sum of its proper divisors (162677613509).

13221100031131 is a wasteful number, since it uses less digits than its factorization.

13221100031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329975285.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 13221100031131 its reverse (13113000112231), we get a palindrome (26334100143362).

The spelling of 13221100031131 in words is "thirteen trillion, two hundred twenty-one billion, one hundred million, thirty-one thousand, one hundred thirty-one".