213031002 has 16 divisors (see below), whose sum is σ = 448486560. Its totient is φ = 67272912.

The previous prime is 213031001. The next prime is 213031003. The reversal of 213031002 is 200130312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (213031001) and next prime (213031003).

It is not an unprimeable number, because it can be changed into a prime (213031001) 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, 934233 + ... + 934460.

It is an arithmetic number, because the mean of its divisors is an integer number (28030410).

Almost surely, 2^213031002 is an apocalyptic number.

213031002 is an abundant number, since it is smaller than the sum of its proper divisors (235455558).

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

213031002 is a wasteful number, since it uses less digits than its factorization.

213031002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868717.

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

The square root of 213031002 is about 14595.5815917010. The cubic root of 213031002 is about 597.2382350395.

Adding to 213031002 its reverse (200130312), we get a palindrome (413161314).

The spelling of 213031002 in words is "two hundred thirteen million, thirty-one thousand, two".