213237020106 has 48 divisors (see below), whose sum is σ = 513524512800. Its totient is φ = 63398081760.

The previous prime is 213237020047. The next prime is 213237020119. The reversal of 213237020106 is 601020732312.

213237020106 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213237020106.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10149456 + ... + 10170443.

It is an arithmetic number, because the mean of its divisors is an integer number (10698427350).

Almost surely, 2^213237020106 is an apocalyptic number.

213237020106 is an abundant number, since it is smaller than the sum of its proper divisors (300287492694).

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

213237020106 is a wasteful number, since it uses less digits than its factorization.

213237020106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20319971 (or 20319968 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

Adding to 213237020106 its reverse (601020732312), we get a palindrome (814257752418).

The spelling of 213237020106 in words is "two hundred thirteen billion, two hundred thirty-seven million, twenty thousand, one hundred six".