100421130 has 32 divisors (see below), whose sum is σ = 241613568. Its totient is φ = 26712000.

The previous prime is 100421077. The next prime is 100421143. The reversal of 100421130 is 31124001.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8655 + ... + 16605.

It is an arithmetic number, because the mean of its divisors is an integer number (7550424).

Almost surely, 2^100421130 is an apocalyptic number.

100421130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100421130 is an abundant number, since it is smaller than the sum of its proper divisors (141192438).

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

100421130 is a wasteful number, since it uses less digits than its factorization.

100421130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8382.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100421130 is about 10021.0343777476. The cubic root of 100421130 is about 464.8095416104.

Adding to 100421130 its reverse (31124001), we get a palindrome (131545131).

The spelling of 100421130 in words is "one hundred million, four hundred twenty-one thousand, one hundred thirty".