100213044 has 12 divisors (see below), whose sum is σ = 233830464. Its totient is φ = 33404344.

The previous prime is 100213037. The next prime is 100213073. The reversal of 100213044 is 440312001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175532 + ... + 4175555.

It is an arithmetic number, because the mean of its divisors is an integer number (19485872).

Almost surely, 2^100213044 is an apocalyptic number.

It is an amenable number.

100213044 is an abundant number, since it is smaller than the sum of its proper divisors (133617420).

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

100213044 is a wasteful number, since it uses less digits than its factorization.

100213044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8351094 (or 8351092 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 100213044 is about 10010.6465325672. The cubic root of 100213044 is about 464.4882704426.

Adding to 100213044 its reverse (440312001), we get a palindrome (540525045).

The spelling of 100213044 in words is "one hundred million, two hundred thirteen thousand, forty-four".