21442033303 has 8 divisors (see below), whose sum is σ = 21580205472. Its totient is φ = 21303977856.

The previous prime is 21442033267. The next prime is 21442033313. The reversal of 21442033303 is 30333024412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21442033303 is a prime.

It is a super-2 number, since 2×21442033303² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21442033313) 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, 355651 + ... + 411547.

It is an arithmetic number, because the mean of its divisors is an integer number (2697525684).

Almost surely, 2^21442033303 is an apocalyptic number.

21442033303 is a deficient number, since it is larger than the sum of its proper divisors (138172169).

21442033303 is a wasteful number, since it uses less digits than its factorization.

21442033303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58361.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21442033303 its reverse (30333024412), we get a palindrome (51775057715).

The spelling of 21442033303 in words is "twenty-one billion, four hundred forty-two million, thirty-three thousand, three hundred three".