20201102020987 has 8 divisors (see below), whose sum is σ = 20337015338640. Its totient is φ = 20065444903680.

The previous prime is 20201102020963. The next prime is 20201102020991. The reversal of 20201102020987 is 78902020110202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20201102020987 - 2⁷ = 20201102020859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201102023987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63891858 + ... + 64207255.

It is an arithmetic number, because the mean of its divisors is an integer number (2542126917330).

Almost surely, 2^{20201102020987} is an apocalyptic number.

20201102020987 is a deficient number, since it is larger than the sum of its proper divisors (135913317653).

20201102020987 is a wasteful number, since it uses less digits than its factorization.

20201102020987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128100173.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 20201102020987 in words is "twenty trillion, two hundred one billion, one hundred two million, twenty thousand, nine hundred eighty-seven".