21323130111303 has 16 divisors (see below), whose sum is σ = 29213354279520. Its totient is φ = 13824534404736.

The previous prime is 21323130111289. The next prime is 21323130111317. The reversal of 21323130111303 is 30311103132312.

It is an interprime number because it is at equal distance from previous prime (21323130111289) and next prime (21323130111317).

It is not a de Polignac number, because 21323130111303 - 2¹² = 21323130107207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323130116303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46193800 + ... + 46653117.

It is an arithmetic number, because the mean of its divisors is an integer number (1825834642470).

Almost surely, 2^{21323130111303} is an apocalyptic number.

21323130111303 is a deficient number, since it is larger than the sum of its proper divisors (7890224168217).

21323130111303 is a wasteful number, since it uses less digits than its factorization.

21323130111303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92849026.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 21323130111303 its reverse (30311103132312), we get a palindrome (51634233243615).

The spelling of 21323130111303 in words is "twenty-one trillion, three hundred twenty-three billion, one hundred thirty million, one hundred eleven thousand, three hundred three".