21230442034004 has 24 divisors (see below), whose sum is σ = 44958583131840. Its totient is φ = 8563539643776.

The previous prime is 21230442033991. The next prime is 21230442034007. The reversal of 21230442034004 is 40043024403212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230442034007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22300884014 + ... + 22300884965.

It is an arithmetic number, because the mean of its divisors is an integer number (1873274297160).

Almost surely, 2^{21230442034004} is an apocalyptic number.

It is an amenable number.

21230442034004 is an abundant number, since it is smaller than the sum of its proper divisors (23728141097836).

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

21230442034004 is a wasteful number, since it uses less digits than its factorization.

21230442034004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44601769007 (or 44601769005 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 21230442034004 its reverse (40043024403212), we get a palindrome (61273466437216).

The spelling of 21230442034004 in words is "twenty-one trillion, two hundred thirty billion, four hundred forty-two million, thirty-four thousand, four".