213003012 has 24 divisors (see below), whose sum is σ = 497884576. Its totient is φ = 70875648.

The previous prime is 213003001. The next prime is 213003067. The reversal of 213003012 is 210300312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8458 + ... + 22305.

Almost surely, 2^213003012 is an apocalyptic number.

It is an amenable number.

213003012 is an abundant number, since it is smaller than the sum of its proper divisors (284881564).

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

213003012 is a wasteful number, since it uses less digits than its factorization.

213003012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31347 (or 31345 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 213003012 is about 14594.6227083813. The cubic root of 213003012 is about 597.2120769839.

Adding to 213003012 its reverse (210300312), we get a palindrome (423303324).

The spelling of 213003012 in words is "two hundred thirteen million, three thousand, twelve".