100023115320 has 96 divisors (see below), whose sum is σ = 325452816000. Its totient is φ = 26641840896.

The previous prime is 100023115267. The next prime is 100023115331. The reversal of 100023115320 is 23511320001.

100023115320 is a `hidden beast` number, since 100 + 0 + 2 + 31 + 1 + 532 + 0 = 666.

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 = 100023115293 and 100023115302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149706 + ... + 471654.

It is an arithmetic number, because the mean of its divisors is an integer number (3390133500).

Almost surely, 2^100023115320 is an apocalyptic number.

100023115320 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 100023115320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162726408000).

100023115320 is an abundant number, since it is smaller than the sum of its proper divisors (225429700680).

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

100023115320 is a wasteful number, since it uses less digits than its factorization.

100023115320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322829 (or 322822 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 100023115320 its reverse (23511320001), we get a palindrome (123534435321).

The spelling of 100023115320 in words is "one hundred billion, twenty-three million, one hundred fifteen thousand, three hundred twenty".