100231420 has 24 divisors (see below), whose sum is σ = 210722400. Its totient is φ = 40047552.

The previous prime is 100231399. The next prime is 100231421. The reversal of 100231420 is 24132001.

It is a self number, because there is not a number n which added to its sum of digits gives 100231420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19921 + ... + 24439.

It is an arithmetic number, because the mean of its divisors is an integer number (8780100).

Almost surely, 2^100231420 is an apocalyptic number.

100231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100231420 is an abundant number, since it is smaller than the sum of its proper divisors (110490980).

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

100231420 is a wasteful number, since it uses less digits than its factorization.

100231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5637 (or 5635 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 100231420 is about 10011.5643133329. The cubic root of 100231420 is about 464.5166596770.

Adding to 100231420 its reverse (24132001), we get a palindrome (124363421).

The spelling of 100231420 in words is "one hundred million, two hundred thirty-one thousand, four hundred twenty".