201010001020 has 12 divisors (see below), whose sum is σ = 422121002184. Its totient is φ = 80404000400.

The previous prime is 201010000943. The next prime is 201010001029. The reversal of 201010001020 is 20100010102.

201010001020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201010000994 and 201010001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010001029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5025250006 + ... + 5025250045.

It is an arithmetic number, because the mean of its divisors is an integer number (35176750182).

Almost surely, 2^201010001020 is an apocalyptic number.

201010001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201010001020 is an abundant number, since it is smaller than the sum of its proper divisors (221111001164).

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

201010001020 is a wasteful number, since it uses less digits than its factorization.

201010001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050500060 (or 10050500058 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 201010001020 its reverse (20100010102), we get a palindrome (221110011122).

The spelling of 201010001020 in words is "two hundred one billion, ten million, one thousand, twenty".