21002231320141 has 8 divisors (see below), whose sum is σ = 22239673545600. Its totient is φ = 19765013189568.

The previous prime is 21002231320097. The next prime is 21002231320199. The reversal of 21002231320141 is 14102313220012.

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 21002231320141 - 2¹⁹ = 21002230795853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002231323141) 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, 55830741 + ... + 56205658.

It is an arithmetic number, because the mean of its divisors is an integer number (2779959193200).

Almost surely, 2^{21002231320141} is an apocalyptic number.

It is an amenable number.

21002231320141 is a deficient number, since it is larger than the sum of its proper divisors (1237442225459).

21002231320141 is a wasteful number, since it uses less digits than its factorization.

21002231320141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112047443.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21002231320141 its reverse (14102313220012), we get a palindrome (35104544540153).

The spelling of 21002231320141 in words is "twenty-one trillion, two billion, two hundred thirty-one million, three hundred twenty thousand, one hundred forty-one".