21011010033003 has 16 divisors (see below), whose sum is σ = 28030980612096. Its totient is φ = 13999190438880.

The previous prime is 21011010032989. The next prime is 21011010033017. The reversal of 21011010033003 is 30033001011012.

It is an interprime number because it is at equal distance from previous prime (21011010032989) and next prime (21011010033017).

It is not a de Polignac number, because 21011010033003 - 2²² = 21011005838699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21011010038003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141872133 + ... + 142020153.

It is an arithmetic number, because the mean of its divisors is an integer number (1751936288256).

Almost surely, 2^{21011010033003} is an apocalyptic number.

21011010033003 is a deficient number, since it is larger than the sum of its proper divisors (7019970579093).

21011010033003 is a wasteful number, since it uses less digits than its factorization.

21011010033003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175234.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21011010033003 its reverse (30033001011012), we get a palindrome (51044011044015).

The spelling of 21011010033003 in words is "twenty-one trillion, eleven billion, ten million, thirty-three thousand, three".