13220302131 has 24 divisors (see below), whose sum is σ = 19674913440. Its totient is φ = 8547866496.

The previous prime is 13220302099. The next prime is 13220302153. The reversal of 13220302131 is 13120302231.

13220302131 is a `hidden beast` number, since 13 + 220 + 302 + 131 = 666.

It is not a de Polignac number, because 13220302131 - 2⁵ = 13220302099 is a prime.

It is a super-2 number, since 2×13220302131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13220302171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40810 + ... + 167648.

It is an arithmetic number, because the mean of its divisors is an integer number (819788060).

Almost surely, 2^13220302131 is an apocalyptic number.

13220302131 is a deficient number, since it is larger than the sum of its proper divisors (6454611309).

13220302131 is a wasteful number, since it uses less digits than its factorization.

13220302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127195 (or 127192 counting only the distinct ones).

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

Adding to 13220302131 its reverse (13120302231), we get a palindrome (26340604362).

The spelling of 13220302131 in words is "thirteen billion, two hundred twenty million, three hundred two thousand, one hundred thirty-one".