20121110230 has 96 divisors (see below), whose sum is σ = 40386257856. Its totient is φ = 7174642176.

The previous prime is 20121110227. The next prime is 20121110297. The reversal of 20121110230 is 3201112102.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 20121110230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29720652 + ... + 29721328.

It is an arithmetic number, because the mean of its divisors is an integer number (420690186).

Almost surely, 2^20121110230 is an apocalyptic number.

20121110230 is an abundant number, since it is smaller than the sum of its proper divisors (20265147626).

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

20121110230 is a wasteful number, since it uses less digits than its factorization.

20121110230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20121110230 its reverse (3201112102), we get a palindrome (23322222332).

The spelling of 20121110230 in words is "twenty billion, one hundred twenty-one million, one hundred ten thousand, two hundred thirty".