21162541043141 has 8 divisors (see below), whose sum is σ = 22292013525120. Its totient is φ = 20034634014432.

The previous prime is 21162541043131. The next prime is 21162541043183. The reversal of 21162541043141 is 14134014526112.

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

It is a cyclic number.

It is not a de Polignac number, because 21162541043141 - 2²² = 21162536848837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21162541043131) 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, 391335560 + ... + 391389633.

It is an arithmetic number, because the mean of its divisors is an integer number (2786501690640).

Almost surely, 2^{21162541043141} is an apocalyptic number.

It is an amenable number.

21162541043141 is a deficient number, since it is larger than the sum of its proper divisors (1129472481979).

21162541043141 is a wasteful number, since it uses less digits than its factorization.

21162541043141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782726635.

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 21162541043141 its reverse (14134014526112), we get a palindrome (35296555569253).

The spelling of 21162541043141 in words is "twenty-one trillion, one hundred sixty-two billion, five hundred forty-one million, forty-three thousand, one hundred forty-one".