100021130 has 32 divisors (see below), whose sum is σ = 206746560. Its totient is φ = 34456320.

The previous prime is 100021127. The next prime is 100021133. The reversal of 100021130 is 31120001.

It is an interprime number because it is at equal distance from previous prime (100021127) and next prime (100021133).

It is not an unprimeable number, because it can be changed into a prime (100021133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21839 + ... + 26018.

It is an arithmetic number, because the mean of its divisors is an integer number (6460830).

Almost surely, 2^100021130 is an apocalyptic number.

100021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100021130 is an abundant number, since it is smaller than the sum of its proper divisors (106725430).

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

100021130 is a wasteful number, since it uses less digits than its factorization.

100021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47894.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 100021130 is about 10001.0564441963. The cubic root of 100021130 is about 464.1915733163.

Adding to 100021130 its reverse (31120001), we get a palindrome (131141131).

The spelling of 100021130 in words is "one hundred million, twenty-one thousand, one hundred thirty".