21331320003103 has 8 divisors (see below), whose sum is σ = 23272039526400. Its totient is φ = 19390851915480.

The previous prime is 21331320003079. The next prime is 21331320003121. The reversal of 21331320003103 is 30130002313312.

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 21331320003103 - 2⁹ = 21331320002591 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 (21331320003163) 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, 62681503 + ... + 63020896.

It is an arithmetic number, because the mean of its divisors is an integer number (2909004940800).

Almost surely, 2^{21331320003103} is an apocalyptic number.

21331320003103 is a deficient number, since it is larger than the sum of its proper divisors (1940719523297).

21331320003103 is a wasteful number, since it uses less digits than its factorization.

21331320003103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125717837.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21331320003103 its reverse (30130002313312), we get a palindrome (51461322316415).

The spelling of 21331320003103 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred twenty million, three thousand, one hundred three".