21300312140303 has 16 divisors (see below), whose sum is σ = 24743354657280. Its totient is φ = 17957330748000.

The previous prime is 21300312140269. The next prime is 21300312140351. The reversal of 21300312140303 is 30304121300312.

It is not a de Polignac number, because 21300312140303 - 2¹⁴ = 21300312123919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300312190303) 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, 8897078 + ... + 11034428.

It is an arithmetic number, because the mean of its divisors is an integer number (1546459666080).

Almost surely, 2^{21300312140303} is an apocalyptic number.

21300312140303 is a deficient number, since it is larger than the sum of its proper divisors (3443042516977).

21300312140303 is a wasteful number, since it uses less digits than its factorization.

21300312140303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160758.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21300312140303 its reverse (30304121300312), we get a palindrome (51604433440615).

The spelling of 21300312140303 in words is "twenty-one trillion, three hundred billion, three hundred twelve million, one hundred forty thousand, three hundred three".