21025002341 has 4 divisors (see below), whose sum is σ = 24028574112. Its totient is φ = 18021430572.

The previous prime is 21025002337. The next prime is 21025002377. The reversal of 21025002341 is 14320052012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21025002341 - 2² = 21025002337 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 (21025002391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501785875 + ... + 1501785888.

It is an arithmetic number, because the mean of its divisors is an integer number (6007143528).

Almost surely, 2^21025002341 is an apocalyptic number.

It is an amenable number.

21025002341 is a deficient number, since it is larger than the sum of its proper divisors (3003571771).

21025002341 is an equidigital number, since it uses as much as digits as its factorization.

21025002341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003571770.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 21025002341 its reverse (14320052012), we get a palindrome (35345054353).

The spelling of 21025002341 in words is "twenty-one billion, twenty-five million, two thousand, three hundred forty-one".