100231500 has 48 divisors (see below), whose sum is σ = 291878496. Its totient is φ = 26728000.

The previous prime is 100231499. The next prime is 100231513. The reversal of 100231500 is 5132001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31911 + ... + 34910.

It is an arithmetic number, because the mean of its divisors is an integer number (6080802).

Almost surely, 2^100231500 is an apocalyptic number.

100231500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100231500 is an abundant number, since it is smaller than the sum of its proper divisors (191646996).

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

100231500 is a wasteful number, since it uses less digits than its factorization.

100231500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66843 (or 66831 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 100231500 is about 10011.5683087117. The cubic root of 100231500 is about 464.5167832621.

Adding to 100231500 its reverse (5132001), we get a palindrome (105363501).

The spelling of 100231500 in words is "one hundred million, two hundred thirty-one thousand, five hundred".