20344211130987 has 12 divisors (see below), whose sum is σ = 29689032052680. Its totient is φ = 13422984663168.

The previous prime is 20344211130937. The next prime is 20344211131039. The reversal of 20344211130987 is 78903111244302.

20344211130987 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 421 + 1 + 130 + 98 + 7 = 666.

It is not a de Polignac number, because 20344211130987 - 2²⁰ = 20344210082411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20344211130907) 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 11 ways as a sum of consecutive naturals, for example, 11651895537 + ... + 11651897282.

It is an arithmetic number, because the mean of its divisors is an integer number (2474086004390).

Almost surely, 2^{20344211130987} is an apocalyptic number.

20344211130987 is a deficient number, since it is larger than the sum of its proper divisors (9344820921693).

20344211130987 is a wasteful number, since it uses less digits than its factorization.

20344211130987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23303792922 (or 23303792919 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 20344211130987 in words is "twenty trillion, three hundred forty-four billion, two hundred eleven million, one hundred thirty thousand, nine hundred eighty-seven".