100021002320 has 80 divisors (see below), whose sum is σ = 253229328000. Its totient is φ = 36595689984.

The previous prime is 100021002317. The next prime is 100021002373. The reversal of 100021002320 is 23200120001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1090460 + ... + 1178619.

It is an arithmetic number, because the mean of its divisors is an integer number (3165366600).

Almost surely, 2^100021002320 is an apocalyptic number.

100021002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021002320 is an abundant number, since it is smaller than the sum of its proper divisors (153208325680).

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

100021002320 is a wasteful number, since it uses less digits than its factorization.

100021002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269140 (or 2269134 counting only the distinct ones).

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

Adding to 100021002320 its reverse (23200120001), we get a palindrome (123221122321).

The spelling of 100021002320 in words is "one hundred billion, twenty-one million, two thousand, three hundred twenty".