100321102420 has 72 divisors (see below), whose sum is σ = 264648771072. Its totient is φ = 31268909760.

The previous prime is 100321102373. The next prime is 100321102433. The reversal of 100321102420 is 24201123001.

It is a junction number, because it is equal to n+sod(n) for n = 100321102394 and 100321102403.

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 23 ways as a sum of consecutive naturals, for example, 2944132 + ... + 2978011.

It is an arithmetic number, because the mean of its divisors is an integer number (3675677376).

Almost surely, 2^100321102420 is an apocalyptic number.

100321102420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100321102420 is an abundant number, since it is smaller than the sum of its proper divisors (164327668652).

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

100321102420 is a wasteful number, since it uses less digits than its factorization.

100321102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922181 (or 5922168 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 100321102420 its reverse (24201123001), we get a palindrome (124522225421).

The spelling of 100321102420 in words is "one hundred billion, three hundred twenty-one million, one hundred two thousand, four hundred twenty".