13131220027 has 2 divisors, whose sum is σ = 13131220028. Its totient is φ = 13131220026.

The previous prime is 13131219967. The next prime is 13131220049. The reversal of 13131220027 is 72002213131.

It is a happy number.

13131220027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13131220049) can be obtained adding 13131220027 to its sum of digits (22).

It is a strong prime.

It is an emirp because it is prime and its reverse (72002213131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13131220027 is a prime.

It is not a weakly prime, because it can be changed into another prime (13131220727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565610013 + 6565610014.

It is an arithmetic number, because the mean of its divisors is an integer number (6565610014).

Almost surely, 2^13131220027 is an apocalyptic number.

13131220027 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131220027 is an equidigital number, since it uses as much as digits as its factorization.

13131220027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 13131220027 its reverse (72002213131), we get a palindrome (85133433158).

The spelling of 13131220027 in words is "thirteen billion, one hundred thirty-one million, two hundred twenty thousand, twenty-seven".