213021233106 has 32 divisors (see below), whose sum is σ = 465496512768. Its totient is φ = 64451484240.

The previous prime is 213021233101. The next prime is 213021233119. The reversal of 213021233106 is 601332120312.

It is not an unprimeable number, because it can be changed into a prime (213021233101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2467356 + ... + 2552231.

It is an arithmetic number, because the mean of its divisors is an integer number (14546766024).

Almost surely, 2^213021233106 is an apocalyptic number.

213021233106 is an abundant number, since it is smaller than the sum of its proper divisors (252475279662).

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

213021233106 is a wasteful number, since it uses less digits than its factorization.

213021233106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020246.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 213021233106 its reverse (601332120312), we get a palindrome (814353353418).

The spelling of 213021233106 in words is "two hundred thirteen billion, twenty-one million, two hundred thirty-three thousand, one hundred six".