20201001911 has 8 divisors (see below), whose sum is σ = 20351640960. Its totient is φ = 20050438968.

The previous prime is 20201001857. The next prime is 20201001941. The reversal of 20201001911 is 11910010202.

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 20201001911 - 2²⁶ = 20133893047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20201001911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201001941) 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, 584660 + ... + 618246.

It is an arithmetic number, because the mean of its divisors is an integer number (2543955120).

Almost surely, 2^20201001911 is an apocalyptic number.

20201001911 is a deficient number, since it is larger than the sum of its proper divisors (150639049).

20201001911 is a wasteful number, since it uses less digits than its factorization.

20201001911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38053.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 20201001911 in words is "twenty billion, two hundred one million, one thousand, nine hundred eleven".