212103331230 has 64 divisors (see below), whose sum is σ = 595298677248. Its totient is φ = 47353299840.

The previous prime is 212103331211. The next prime is 212103331247. The reversal of 212103331230 is 32133301212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 212103331197 and 212103331206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11735341 + ... + 11753400.

It is an arithmetic number, because the mean of its divisors is an integer number (9301541832).

Almost surely, 2^212103331230 is an apocalyptic number.

212103331230 is an abundant number, since it is smaller than the sum of its proper divisors (383195346018).

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

212103331230 is a wasteful number, since it uses less digits than its factorization.

212103331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23488801.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212103331230 its reverse (32133301212), we get a palindrome (244236632442).

The spelling of 212103331230 in words is "two hundred twelve billion, one hundred three million, three hundred thirty-one thousand, two hundred thirty".