10300021020 has 48 divisors (see below), whose sum is σ = 32044511520. Its totient is φ = 2746672128.

The previous prime is 10300021009. The next prime is 10300021073. The reversal of 10300021020 is 2012000301.

It is a happy number.

It is a super-5 number, since 5×10300021020⁵ (a number of 51 digits) contains 55555 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 10300020993 and 10300021011.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9536517 + ... + 9537596.

It is an arithmetic number, because the mean of its divisors is an integer number (667593990).

Almost surely, 2^10300021020 is an apocalyptic number.

10300021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10300021020 is an abundant number, since it is smaller than the sum of its proper divisors (21744490500).

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

10300021020 is a wasteful number, since it uses less digits than its factorization.

10300021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19074131 (or 19074123 counting only the distinct ones).

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

Adding to 10300021020 its reverse (2012000301), we get a palindrome (12312021321).

The spelling of 10300021020 in words is "ten billion, three hundred million, twenty-one thousand, twenty".