21140104425441 has 8 divisors (see below), whose sum is σ = 28202267677440. Its totient is φ = 14085672061872.

The previous prime is 21140104425403. The next prime is 21140104425469. The reversal of 21140104425441 is 14452440104112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21140104425441 - 2⁴³ = 12344011403233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21140104425491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932715726 + ... + 1932726663.

It is an arithmetic number, because the mean of its divisors is an integer number (3525283459680).

Almost surely, 2^{21140104425441} is an apocalyptic number.

It is an amenable number.

21140104425441 is a deficient number, since it is larger than the sum of its proper divisors (7062163251999).

21140104425441 is a wasteful number, since it uses less digits than its factorization.

21140104425441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865444215.

The product of its (nonzero) digits is 20480, while the sum is 33.

Adding to 21140104425441 its reverse (14452440104112), we get a palindrome (35592544529553).

The spelling of 21140104425441 in words is "twenty-one trillion, one hundred forty billion, one hundred four million, four hundred twenty-five thousand, four hundred forty-one".