21341440044042 has 64 divisors (see below), whose sum is σ = 44457216539520. Its totient is φ = 6823622145024.

The previous prime is 21341440044037. The next prime is 21341440044047. The reversal of 21341440044042 is 24044004414312.

It is an interprime number because it is at equal distance from previous prime (21341440044037) and next prime (21341440044047).

It is a super-3 number, since 3×21341440044042³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21341440043994 and 21341440044012.

It is not an unprimeable number, because it can be changed into a prime (21341440044047) 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 31 ways as a sum of consecutive naturals, for example, 35402934 + ... + 36000702.

It is an arithmetic number, because the mean of its divisors is an integer number (694644008430).

Almost surely, 2^{21341440044042} is an apocalyptic number.

21341440044042 is an abundant number, since it is smaller than the sum of its proper divisors (23115776495478).

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

21341440044042 is a wasteful number, since it uses less digits than its factorization.

21341440044042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600087.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 21341440044042 its reverse (24044004414312), we get a palindrome (45385444458354).

The spelling of 21341440044042 in words is "twenty-one trillion, three hundred forty-one billion, four hundred forty million, forty-four thousand, forty-two".