213103231002 has 24 divisors (see below), whose sum is σ = 463655574720. Its totient is φ = 70737193800.

The previous prime is 213103230983. The next prime is 213103231007. The reversal of 213103231002 is 200132301312.

213103231002 is a `hidden beast` number, since 21 + 310 + 323 + 10 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (213103231007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24763624 + ... + 24772227.

It is an arithmetic number, because the mean of its divisors is an integer number (19318982280).

Almost surely, 2^213103231002 is an apocalyptic number.

213103231002 is an abundant number, since it is smaller than the sum of its proper divisors (250552343718).

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

213103231002 is a wasteful number, since it uses less digits than its factorization.

213103231002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49536098 (or 49536095 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213103231002 its reverse (200132301312), we get a palindrome (413235532314).

The spelling of 213103231002 in words is "two hundred thirteen billion, one hundred three million, two hundred thirty-one thousand, two".