100003124412 has 72 divisors (see below), whose sum is σ = 257772833136. Its totient is φ = 32677791744.

The previous prime is 100003124407. The next prime is 100003124423. The reversal of 100003124412 is 214421300001.

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

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, 2300503 + ... + 2343569.

It is an arithmetic number, because the mean of its divisors is an integer number (3580178238).

Almost surely, 2^100003124412 is an apocalyptic number.

100003124412 is a gapful number since it is divisible by the number (12) 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 100003124412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128886416568).

100003124412 is an abundant number, since it is smaller than the sum of its proper divisors (157769708724).

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

100003124412 is a wasteful number, since it uses less digits than its factorization.

100003124412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44347 (or 44342 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 100003124412 its reverse (214421300001), we get a palindrome (314424424413).

The spelling of 100003124412 in words is "one hundred billion, three million, one hundred twenty-four thousand, four hundred twelve".