20200322987 has 4 divisors (see below), whose sum is σ = 21754194000. Its totient is φ = 18646451976.

The previous prime is 20200322963. The next prime is 20200323001. The reversal of 20200322987 is 78922300202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20200322987 - 2²² = 20196128683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200322287) 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 in 3 ways as a sum of consecutive naturals, for example, 776935487 + ... + 776935512.

It is an arithmetic number, because the mean of its divisors is an integer number (5438548500).

Almost surely, 2^20200322987 is an apocalyptic number.

20200322987 is a deficient number, since it is larger than the sum of its proper divisors (1553871013).

20200322987 is a wasteful number, since it uses less digits than its factorization.

20200322987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553871012.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 20200322987 in words is "twenty billion, two hundred million, three hundred twenty-two thousand, nine hundred eighty-seven".