100421234 has 8 divisors (see below), whose sum is σ = 153836928. Its totient is φ = 49142260.

The previous prime is 100421231. The next prime is 100421239. The reversal of 100421234 is 432124001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (100421231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534062 + ... + 534249.

It is an arithmetic number, because the mean of its divisors is an integer number (19229616).

Almost surely, 2^100421234 is an apocalyptic number.

100421234 is a deficient number, since it is larger than the sum of its proper divisors (53415694).

100421234 is a wasteful number, since it uses less digits than its factorization.

100421234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068360.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 100421234 is about 10021.0395668314. The cubic root of 100421234 is about 464.8097020686.

Adding to 100421234 its reverse (432124001), we get a palindrome (532545235).

The spelling of 100421234 in words is "one hundred million, four hundred twenty-one thousand, two hundred thirty-four".