20121271130 has 16 divisors (see below), whose sum is σ = 38124514080. Its totient is φ = 7624902672.

The previous prime is 20121271129. The next prime is 20121271169. The reversal of 20121271130 is 3117212102.

It is an unprimeable number.

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, 52950524 + ... + 52950903.

It is an arithmetic number, because the mean of its divisors is an integer number (2382782130).

Almost surely, 2^20121271130 is an apocalyptic number.

20121271130 is a deficient number, since it is larger than the sum of its proper divisors (18003242950).

20121271130 is a wasteful number, since it uses less digits than its factorization.

20121271130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105901453.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 20121271130 its reverse (3117212102), we get a palindrome (23238483232).

The spelling of 20121271130 in words is "twenty billion, one hundred twenty-one million, two hundred seventy-one thousand, one hundred thirty".