21133444312003 has 8 divisors (see below), whose sum is σ = 23554303258320. Its totient is φ = 18843442606080.

The previous prime is 21133444311983. The next prime is 21133444312081. The reversal of 21133444312003 is 30021344433112.

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 21133444312003 - 2⁵ = 21133444311971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21133444312093) 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, 32714309758 + ... + 32714310403.

It is an arithmetic number, because the mean of its divisors is an integer number (2944287907290).

Almost surely, 2^{21133444312003} is an apocalyptic number.

21133444312003 is a deficient number, since it is larger than the sum of its proper divisors (2420858946317).

21133444312003 is a wasteful number, since it uses less digits than its factorization.

21133444312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65428620197.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21133444312003 its reverse (30021344433112), we get a palindrome (51154788745115).

The spelling of 21133444312003 in words is "twenty-one trillion, one hundred thirty-three billion, four hundred forty-four million, three hundred twelve thousand, three".