201100013020 has 24 divisors (see below), whose sum is σ = 423029489904. Its totient is φ = 80302964736.

The previous prime is 201100013017. The next prime is 201100013039. The reversal of 201100013020 is 20310001102.

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

It is a junction number, because it is equal to n+sod(n) for n = 201100012988 and 201100013006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8552997 + ... + 8576476.

It is an arithmetic number, because the mean of its divisors is an integer number (17626228746).

Almost surely, 2^201100013020 is an apocalyptic number.

201100013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100013020 is an abundant number, since it is smaller than the sum of its proper divisors (221929476884).

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

201100013020 is a wasteful number, since it uses less digits than its factorization.

201100013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17130069 (or 17130067 counting only the distinct ones).

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

Adding to 201100013020 its reverse (20310001102), we get a palindrome (221410014122).

The spelling of 201100013020 in words is "two hundred one billion, one hundred million, thirteen thousand, twenty".