213031300 has 36 divisors (see below), whose sum is σ = 470126160. Its totient is φ = 83765920.

The previous prime is 213031289. The next prime is 213031309. The reversal of 213031300 is 3130312.

It is not an unprimeable number, because it can be changed into a prime (213031309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12154 + ... + 23953.

It is an arithmetic number, because the mean of its divisors is an integer number (13059060).

Almost surely, 2^213031300 is an apocalyptic number.

213031300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213031300 is an abundant number, since it is smaller than the sum of its proper divisors (257094860).

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

213031300 is a wasteful number, since it uses less digits than its factorization.

213031300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36180 (or 36173 counting only the distinct ones).

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

The square root of 213031300 is about 14595.5918002663. The cubic root of 213031300 is about 597.2385135231.

Adding to 213031300 its reverse (3130312), we get a palindrome (216161612).

The spelling of 213031300 in words is "two hundred thirteen million, thirty-one thousand, three hundred".