100123430 has 16 divisors (see below), whose sum is σ = 196606224. Its totient is φ = 36408480.

The previous prime is 100123423. The next prime is 100123433. The reversal of 100123430 is 34321001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100123433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454997 + ... + 455216.

It is an arithmetic number, because the mean of its divisors is an integer number (12287889).

Almost surely, 2^100123430 is an apocalyptic number.

100123430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100123430 is a deficient number, since it is larger than the sum of its proper divisors (96482794).

100123430 is a wasteful number, since it uses less digits than its factorization.

100123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910231.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 100123430 is about 10006.1695968038. The cubic root of 100123430 is about 464.3497752801.

Adding to 100123430 its reverse (34321001), we get a palindrome (134444431).

The spelling of 100123430 in words is "one hundred million, one hundred twenty-three thousand, four hundred thirty".