213203712 has 108 divisors (see below), whose sum is σ = 599648280. Its totient is φ = 67239936.

The previous prime is 213203687. The next prime is 213203719. The reversal of 213203712 is 217302312.

It is not an unprimeable number, because it can be changed into a prime (213203719) 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, 276864 + ... + 277632.

Almost surely, 2^213203712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213203712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299824140).

213203712 is an abundant number, since it is smaller than the sum of its proper divisors (386444568).

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

213203712 is an equidigital number, since it uses as much as digits as its factorization.

213203712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 213203712 is about 14601.4969095638. The cubic root of 213203712 is about 597.3995905104.

The spelling of 213203712 in words is "two hundred thirteen million, two hundred three thousand, seven hundred twelve".