20201001912 has 128 divisors (see below), whose sum is σ = 69063321600. Its totient is φ = 5327731584.

The previous prime is 20201001857. The next prime is 20201001941. The reversal of 20201001912 is 21910010202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494208 + ... + 533519.

It is an arithmetic number, because the mean of its divisors is an integer number (539557200).

Almost surely, 2^20201001912 is an apocalyptic number.

It is an amenable number.

20201001912 is an abundant number, since it is smaller than the sum of its proper divisors (48862319688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201001912 is a wasteful number, since it uses less digits than its factorization.

20201001912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027762 (or 1027752 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 20201001912 in words is "twenty billion, two hundred one million, one thousand, nine hundred twelve".