100320322420 has 24 divisors (see below), whose sum is σ = 210680321544. Its totient is φ = 40126672896.

The previous prime is 100320322397. The next prime is 100320322441. The reversal of 100320322420 is 24223023001.

It can be written as a sum of positive squares in 4 ways, for example, as 47884818276 + 52435504144 = 218826^2 + 228988^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603064 + ... + 751216.

It is an arithmetic number, because the mean of its divisors is an integer number (8778346731).

Almost surely, 2^100320322420 is an apocalyptic number.

100320322420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100320322420 is an abundant number, since it is smaller than the sum of its proper divisors (110359999124).

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

100320322420 is a wasteful number, since it uses less digits than its factorization.

100320322420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182019 (or 182017 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 100320322420 its reverse (24223023001), we get a palindrome (124543345421).

It can be divided in two parts, 100320 and 322420, that added together give a triangular number (422740 = T₉₁₉).

The spelling of 100320322420 in words is "one hundred billion, three hundred twenty million, three hundred twenty-two thousand, four hundred twenty".