100723320 has 96 divisors (see below), whose sum is σ = 333590400. Its totient is φ = 26347776.

The previous prime is 100723307. The next prime is 100723321. The reversal of 100723320 is 23327001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100723293 and 100723302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100723321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16441 + ... + 21719.

It is an arithmetic number, because the mean of its divisors is an integer number (3474900).

Almost surely, 2^100723320 is an apocalyptic number.

100723320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100723320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166795200).

100723320 is an abundant number, since it is smaller than the sum of its proper divisors (232867080).

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

100723320 is a wasteful number, since it uses less digits than its factorization.

100723320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349 (or 5342 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 100723320 is about 10036.1008364803. The cubic root of 100723320 is about 465.2753138957.

The spelling of 100723320 in words is "one hundred million, seven hundred twenty-three thousand, three hundred twenty".