21000341401444 has 6 divisors (see below), whose sum is σ = 36750597452534. Its totient is φ = 10500170700720.

The previous prime is 21000341401441. The next prime is 21000341401483. The reversal of 21000341401444 is 44410414300012.

It can be written as a sum of positive squares in only one way, i.e., 13545049729600 + 7455291671844 = 3680360^2 + 2730438^2 .

It is not an unprimeable number, because it can be changed into a prime (21000341401441) 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 as a sum of consecutive naturals, namely, 2625042675177 + ... + 2625042675184.

Almost surely, 2^{21000341401444} is an apocalyptic number.

It is an amenable number.

21000341401444 is a deficient number, since it is larger than the sum of its proper divisors (15750256051090).

21000341401444 is a wasteful number, since it uses less digits than its factorization.

21000341401444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250085350365 (or 5250085350363 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21000341401444 its reverse (44410414300012), we get a palindrome (65410755701456).

The spelling of 21000341401444 in words is "twenty-one trillion, three hundred forty-one million, four hundred one thousand, four hundred forty-four".