213388012 has 24 divisors (see below), whose sum is σ = 416208240. Its totient is φ = 95132160.

The previous prime is 213388009. The next prime is 213388013. The reversal of 213388012 is 210883312.

It is not an unprimeable number, because it can be changed into a prime (213388013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81289 + ... + 83872.

It is an arithmetic number, because the mean of its divisors is an integer number (17342010).

Almost surely, 2^213388012 is an apocalyptic number.

It is an amenable number.

213388012 is a deficient number, since it is larger than the sum of its proper divisors (202820228).

213388012 is a wasteful number, since it uses less digits than its factorization.

213388012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165201 (or 165199 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 213388012 is about 14607.8065430783. The cubic root of 213388012 is about 597.5716779377.

The spelling of 213388012 in words is "two hundred thirteen million, three hundred eighty-eight thousand, twelve".