100300012020 has 96 divisors (see below), whose sum is σ = 336047927040. Its totient is φ = 24689232000.

The previous prime is 100300012013. The next prime is 100300012027. The reversal of 100300012020 is 20210003001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100300012013) and next prime (100300012027).

It is a super-2 number, since 2×100300012020² (a number of 23 digits) contains 22 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 = 100300011993 and 100300012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100300012027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7136856 + ... + 7150895.

It is an arithmetic number, because the mean of its divisors is an integer number (3500499240).

Almost surely, 2^100300012020 is an apocalyptic number.

100300012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100300012020 is an abundant number, since it is smaller than the sum of its proper divisors (235747915020).

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

100300012020 is a wasteful number, since it uses less digits than its factorization.

100300012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287782 (or 14287774 counting only the distinct ones).

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

Adding to 100300012020 its reverse (20210003001), we get a palindrome (120510015021).

The spelling of 100300012020 in words is "one hundred billion, three hundred million, twelve thousand, twenty".