21040222303 has 8 divisors (see below), whose sum is σ = 21768018480. Its totient is φ = 20312577600.

The previous prime is 21040222271. The next prime is 21040222321. The reversal of 21040222303 is 30322204012.

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 21040222303 - 2⁵ = 21040222271 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 (21040262303) 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, 294228 + ... + 358678.

It is an arithmetic number, because the mean of its divisors is an integer number (2721002310).

Almost surely, 2^21040222303 is an apocalyptic number.

21040222303 is a deficient number, since it is larger than the sum of its proper divisors (727796177).

21040222303 is a wasteful number, since it uses less digits than its factorization.

21040222303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75737.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21040222303 its reverse (30322204012), we get a palindrome (51362426315).

The spelling of 21040222303 in words is "twenty-one billion, forty million, two hundred twenty-two thousand, three hundred three".