213122131230 has 32 divisors (see below), whose sum is σ = 519878252448. Its totient is φ = 55900886400.

The previous prime is 213122131223. The next prime is 213122131241. The reversal of 213122131230 is 32131221312.

213122131230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213122131197 and 213122131206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58228261 + ... + 58231920.

It is an arithmetic number, because the mean of its divisors is an integer number (16246195389).

Almost surely, 2^213122131230 is an apocalyptic number.

213122131230 is an abundant number, since it is smaller than the sum of its proper divisors (306756121218).

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

213122131230 is a wasteful number, since it uses less digits than its factorization.

213122131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116460252.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213122131230 its reverse (32131221312), we get a palindrome (245253352542).

The spelling of 213122131230 in words is "two hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred thirty".