21230232230112 has 24 divisors (see below), whose sum is σ = 55729359604296. Its totient is φ = 7076744076672.

The previous prime is 21230232230107. The next prime is 21230232230173. The reversal of 21230232230112 is 21103223203212.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110574126103 + ... + 110574126294.

It is an arithmetic number, because the mean of its divisors is an integer number (2322056650179).

Almost surely, 2^{21230232230112} is an apocalyptic number.

It is an amenable number.

21230232230112 is an abundant number, since it is smaller than the sum of its proper divisors (34499127374184).

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

21230232230112 is a wasteful number, since it uses less digits than its factorization.

21230232230112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221148252410 (or 221148252402 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21230232230112 its reverse (21103223203212), we get a palindrome (42333455433324).

The spelling of 21230232230112 in words is "twenty-one trillion, two hundred thirty billion, two hundred thirty-two million, two hundred thirty thousand, one hundred twelve".