212103012131230 has 64 divisors (see below), whose sum is σ = 419984184142080. Its totient is φ = 77119385951520.

The previous prime is 212103012131167. The next prime is 212103012131237. The reversal of 212103012131230 is 32131210301212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212103012131237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113901781 + ... + 115748959.

It is an arithmetic number, because the mean of its divisors is an integer number (6562252877220).

Almost surely, 2^{212103012131230} is an apocalyptic number.

212103012131230 is a deficient number, since it is larger than the sum of its proper divisors (207881172010850).

212103012131230 is a wasteful number, since it uses less digits than its factorization.

212103012131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855846 (or 1855824 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 212103012131230 its reverse (32131210301212), we get a palindrome (244234222432442).

The spelling of 212103012131230 in words is "two hundred twelve trillion, one hundred three billion, twelve million, one hundred thirty-one thousand, two hundred thirty".