21021341303 has 8 divisors (see below), whose sum is σ = 21938364000. Its totient is φ = 20104572928.

The previous prime is 21021341291. The next prime is 21021341351. The reversal of 21021341303 is 30314312012.

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 21021341303 - 2⁴ = 21021341287 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 (21021341503) 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, 116183 + ... + 235671.

It is an arithmetic number, because the mean of its divisors is an integer number (2742295500).

Almost surely, 2^21021341303 is an apocalyptic number.

21021341303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21021341303 is a deficient number, since it is larger than the sum of its proper divisors (917022697).

21021341303 is a wasteful number, since it uses less digits than its factorization.

21021341303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127161.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21021341303 its reverse (30314312012), we get a palindrome (51335653315).

The spelling of 21021341303 in words is "twenty-one billion, twenty-one million, three hundred forty-one thousand, three hundred three".