13721267106 has 16 divisors (see below), whose sum is σ = 30491704800. Its totient is φ = 4573755684.

The previous prime is 13721267101. The next prime is 13721267111. The reversal of 13721267106 is 60176212731.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13721267101) and next prime (13721267111).

It is not an unprimeable number, because it can be changed into a prime (13721267101) 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 7 ways as a sum of consecutive naturals, for example, 127048716 + ... + 127048823.

It is an arithmetic number, because the mean of its divisors is an integer number (1905731550).

Almost surely, 2^13721267106 is an apocalyptic number.

13721267106 is an abundant number, since it is smaller than the sum of its proper divisors (16770437694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13721267106 is a wasteful number, since it uses less digits than its factorization.

13721267106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254097550 (or 254097544 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

Adding to 13721267106 its reverse (60176212731), we get a palindrome (73897479837).

The spelling of 13721267106 in words is "thirteen billion, seven hundred twenty-one million, two hundred sixty-seven thousand, one hundred six".