10021020300 has 90 divisors (see below), whose sum is σ = 32484215148. Its totient is φ = 2672269920.

The previous prime is 10021020253. The next prime is 10021020307. The reversal of 10021020300 is 302012001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10021020307) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 610482 + ... + 626681.

Almost surely, 2^10021020300 is an apocalyptic number.

10021020300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021020300 is an abundant number, since it is smaller than the sum of its proper divisors (22463194848).

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

10021020300 is a wasteful number, since it uses less digits than its factorization.

10021020300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237189 (or 1237173 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 10021020300 its reverse (302012001), we get a palindrome (10323032301).

The spelling of 10021020300 in words is "ten billion, twenty-one million, twenty thousand, three hundred".