213110100 has 108 divisors (see below), whose sum is σ = 763430304. Its totient is φ = 48709440.

The previous prime is 213110071. The next prime is 213110159. The reversal of 213110100 is 1011312.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10614 + ... + 23213.

Almost surely, 2^213110100 is an apocalyptic number.

213110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213110100 is an abundant number, since it is smaller than the sum of its proper divisors (550320204).

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

213110100 is a wasteful number, since it uses less digits than its factorization.

213110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33854 (or 33844 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 213110100 is about 14598.2909958666. The cubic root of 213110100 is about 597.3121436943.

Adding to 213110100 its reverse (1011312), we get a palindrome (214121412).

The spelling of 213110100 in words is "two hundred thirteen million, one hundred ten thousand, one hundred".