20121130984 has 16 divisors (see below), whose sum is σ = 37821209220. Its totient is φ = 10035475200.

The previous prime is 20121130949. The next prime is 20121130999. The reversal of 20121130984 is 48903112102.

It can be written as a sum of positive squares in 2 ways, for example, as 15418188900 + 4702942084 = 124170^2 + 68578^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3132879 + ... + 3139294.

Almost surely, 2^20121130984 is an apocalyptic number.

It is an amenable number.

20121130984 is a deficient number, since it is larger than the sum of its proper divisors (17700078236).

20121130984 is a wasteful number, since it uses less digits than its factorization.

20121130984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6272580 (or 6272576 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 20121130984 in words is "twenty billion, one hundred twenty-one million, one hundred thirty thousand, nine hundred eighty-four".