201001320100 has 36 divisors (see below), whose sum is σ = 498483275584. Its totient is φ = 68914738080.

The previous prime is 201001320097. The next prime is 201001320119. The reversal of 201001320100 is 1023100102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143571672 + ... + 143573071.

Almost surely, 2^201001320100 is an apocalyptic number.

201001320100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201001320100 is an abundant number, since it is smaller than the sum of its proper divisors (297481955484).

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

201001320100 is a wasteful number, since it uses less digits than its factorization.

201001320100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287144764 (or 287144757 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 201001320100 its reverse (1023100102), we get a palindrome (202024420202).

The spelling of 201001320100 in words is "two hundred one billion, one million, three hundred twenty thousand, one hundred".