213433012 has 12 divisors (see below), whose sum is σ = 402239236. Its totient is φ = 98507520.

The previous prime is 213433001. The next prime is 213433013. The reversal of 213433012 is 210334312.

It can be written as a sum of positive squares in 2 ways, for example, as 69288976 + 144144036 = 8324^2 + 12006^2 .

It is a super-2 number, since 2×213433012² = 91107301222784288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213433013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2052189 + ... + 2052292.

Almost surely, 2^213433012 is an apocalyptic number.

It is an amenable number.

213433012 is a deficient number, since it is larger than the sum of its proper divisors (188806224).

213433012 is a wasteful number, since it uses less digits than its factorization.

213433012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104498 (or 4104496 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213433012 is about 14609.3467341973. The cubic root of 213433012 is about 597.6136809775.

Adding to 213433012 its reverse (210334312), we get a palindrome (423767324).

The spelling of 213433012 in words is "two hundred thirteen million, four hundred thirty-three thousand, twelve".