213303100 has 18 divisors (see below), whose sum is σ = 462867944. Its totient is φ = 85321200.

The previous prime is 213303089. The next prime is 213303107. The reversal of 213303100 is 1303312.

It is a super-2 number, since 2×213303100² = 90996424939220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213303107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1066416 + ... + 1066615.

Almost surely, 2^213303100 is an apocalyptic number.

213303100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213303100 is an abundant number, since it is smaller than the sum of its proper divisors (249564844).

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

213303100 is a wasteful number, since it uses less digits than its factorization.

213303100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133045 (or 2133038 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 213303100 is about 14604.8998627173. The cubic root of 213303100 is about 597.4924049150.

Adding to 213303100 its reverse (1303312), we get a palindrome (214606412).

The spelling of 213303100 in words is "two hundred thirteen million, three hundred three thousand, one hundred".