21230110041204 has 24 divisors (see below), whose sum is σ = 49537864510848. Its totient is φ = 7076568906880.

The previous prime is 21230110041199. The next prime is 21230110041241. The reversal of 21230110041204 is 40214001103212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16146012 + ... + 17411315.

It is an arithmetic number, because the mean of its divisors is an integer number (2064077687952).

Almost surely, 2^{21230110041204} is an apocalyptic number.

It is an amenable number.

21230110041204 is an abundant number, since it is smaller than the sum of its proper divisors (28307754469644).

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

21230110041204 is a wasteful number, since it uses less digits than its factorization.

21230110041204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33610055 (or 33610053 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21230110041204 its reverse (40214001103212), we get a palindrome (61444111144416).

The spelling of 21230110041204 in words is "twenty-one trillion, two hundred thirty billion, one hundred ten million, forty-one thousand, two hundred four".