21130033103 has 8 divisors (see below), whose sum is σ = 21162577920. Its totient is φ = 21097515960.

The previous prime is 21130033087. The next prime is 21130033151. The reversal of 21130033103 is 30133003112.

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 21130033103 - 2⁴ = 21130033087 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 (21130533103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1903058 + ... + 1914128.

It is an arithmetic number, because the mean of its divisors is an integer number (2645322240).

Almost surely, 2^21130033103 is an apocalyptic number.

21130033103 is a deficient number, since it is larger than the sum of its proper divisors (32544817).

21130033103 is a wasteful number, since it uses less digits than its factorization.

21130033103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13837.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21130033103 its reverse (30133003112), we get a palindrome (51263036215).

The spelling of 21130033103 in words is "twenty-one billion, one hundred thirty million, thirty-three thousand, one hundred three".