210001302020 has 48 divisors (see below), whose sum is σ = 442276447536. Its totient is φ = 83758080000.

The previous prime is 210001302011. The next prime is 210001302041. The reversal of 210001302020 is 20203100012.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7299651844 + 202701650176 = 85438^2 + 450224^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210001301992 and 210001302010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36576350 + ... + 36582090.

It is an arithmetic number, because the mean of its divisors is an integer number (9214092657).

Almost surely, 2^210001302020 is an apocalyptic number.

210001302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210001302020 is an abundant number, since it is smaller than the sum of its proper divisors (232275145516).

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

210001302020 is a wasteful number, since it uses less digits than its factorization.

210001302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10712 (or 10710 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 210001302020 its reverse (20203100012), we get a palindrome (230204402032).

The spelling of 210001302020 in words is "two hundred ten billion, one million, three hundred two thousand, twenty".