100243123430 has 48 divisors (see below), whose sum is σ = 185106686832. Its totient is φ = 39085267200.

The previous prime is 100243123417. The next prime is 100243123439. The reversal of 100243123430 is 34321342001.

It is a junction number, because it is equal to n+sod(n) for n = 100243123396 and 100243123405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100243123439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28961900 + ... + 28965360.

It is an arithmetic number, because the mean of its divisors is an integer number (3856389309).

Almost surely, 2^100243123430 is an apocalyptic number.

100243123430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100243123430 is a deficient number, since it is larger than the sum of its proper divisors (84863563402).

100243123430 is a wasteful number, since it uses less digits than its factorization.

100243123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273 (or 5232 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 100243123430 its reverse (34321342001), we get a palindrome (134564465431).

The spelling of 100243123430 in words is "one hundred billion, two hundred forty-three million, one hundred twenty-three thousand, four hundred thirty".