100231544420 has 96 divisors (see below), whose sum is σ = 247186947840. Its totient is φ = 33418759680.

The previous prime is 100231544419. The next prime is 100231544423. The reversal of 100231544420 is 24445132001.

It is a self number, because there is not a number n which added to its sum of digits gives 100231544420.

It is not an unprimeable number, because it can be changed into a prime (100231544423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13148210 + ... + 13155830.

It is an arithmetic number, because the mean of its divisors is an integer number (2574864040).

Almost surely, 2^100231544420 is an apocalyptic number.

100231544420 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 100231544420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123593473920).

100231544420 is an abundant number, since it is smaller than the sum of its proper divisors (146955403420).

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

100231544420 is a wasteful number, since it uses less digits than its factorization.

100231544420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10213 (or 10211 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 100231544420 its reverse (24445132001), we get a palindrome (124676676421).

The spelling of 100231544420 in words is "one hundred billion, two hundred thirty-one million, five hundred forty-four thousand, four hundred twenty".