21331300120003 has 4 divisors (see below), whose sum is σ = 21851575732728. Its totient is φ = 20811024507280.

The previous prime is 21331300119979. The next prime is 21331300120043. The reversal of 21331300120003 is 30002100313312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21331300120003 - 2²⁵ = 21331266565571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21331300120043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260137806301 + ... + 260137806382.

It is an arithmetic number, because the mean of its divisors is an integer number (5462893933182).

Almost surely, 2^{21331300120003} is an apocalyptic number.

21331300120003 is a deficient number, since it is larger than the sum of its proper divisors (520275612725).

21331300120003 is an equidigital number, since it uses as much as digits as its factorization.

21331300120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520275612724.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21331300120003 its reverse (30002100313312), we get a palindrome (51333400433315).

The spelling of 21331300120003 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred million, one hundred twenty thousand, three".