21203010341 has 4 divisors (see below), whose sum is σ = 21208604172. Its totient is φ = 21197416512.

The previous prime is 21203010289. The next prime is 21203010349. The reversal of 21203010341 is 14301030212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2803173025 + 18399837316 = 52945^2 + 135646^2 .

It is a cyclic number.

It is not a de Polignac number, because 21203010341 - 2⁶ = 21203010277 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 (21203010349) 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, 2791226 + ... + 2798811.

It is an arithmetic number, because the mean of its divisors is an integer number (5302151043).

Almost surely, 2^21203010341 is an apocalyptic number.

It is an amenable number.

21203010341 is a deficient number, since it is larger than the sum of its proper divisors (5593831).

21203010341 is an equidigital number, since it uses as much as digits as its factorization.

21203010341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593830.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21203010341 its reverse (14301030212), we get a palindrome (35504040553).

The spelling of 21203010341 in words is "twenty-one billion, two hundred three million, ten thousand, three hundred forty-one".