13220032131 has 12 divisors (see below), whose sum is σ = 19096793352. Its totient is φ = 8812804896.

The previous prime is 13220032121. The next prime is 13220032159. The reversal of 13220032131 is 13123002231.

It is not a de Polignac number, because 13220032131 - 2¹⁰ = 13220031107 is a prime.

It is a super-2 number, since 2×13220032131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13220032121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150895 + ... + 221831.

It is an arithmetic number, because the mean of its divisors is an integer number (1591399446).

Almost surely, 2^13220032131 is an apocalyptic number.

13220032131 is a deficient number, since it is larger than the sum of its proper divisors (5876761221).

13220032131 is a wasteful number, since it uses less digits than its factorization.

13220032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91650 (or 91647 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13220032131 its reverse (13123002231), we get a palindrome (26343034362).

The spelling of 13220032131 in words is "thirteen billion, two hundred twenty million, thirty-two thousand, one hundred thirty-one".