213003100 has 18 divisors (see below), whose sum is σ = 462216944. Its totient is φ = 85201200.

The previous prime is 213003083. The next prime is 213003103. The reversal of 213003100 is 1300312.

213003100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213003100² = 90740641219220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213003103) 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, 1064916 + ... + 1065115.

Almost surely, 2^213003100 is an apocalyptic number.

213003100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213003100 is an abundant number, since it is smaller than the sum of its proper divisors (249213844).

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

213003100 is a wasteful number, since it uses less digits than its factorization.

213003100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130045 (or 2130038 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 213003100 is about 14594.6257231900. The cubic root of 213003100 is about 597.2121592279.

Adding to 213003100 its reverse (1300312), we get a palindrome (214303412).

The spelling of 213003100 in words is "two hundred thirteen million, three thousand, one hundred".