21300310143 has 36 divisors (see below), whose sum is σ = 37346435568. Its totient is φ = 11642400000.

The previous prime is 21300310139. The next prime is 21300310151. The reversal of 21300310143 is 34101300312.

21300310143 is a `hidden beast` number, since 213 + 0 + 0 + 310 + 143 = 666.

It is not a de Polignac number, because 21300310143 - 2² = 21300310139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300310153) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1039858 + ... + 1060143.

It is an arithmetic number, because the mean of its divisors is an integer number (1037400988).

Almost surely, 2^21300310143 is an apocalyptic number.

21300310143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21300310143 is a deficient number, since it is larger than the sum of its proper divisors (16046125425).

21300310143 is a wasteful number, since it uses less digits than its factorization.

21300310143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100044 (or 2100034 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21300310143 its reverse (34101300312), we get a palindrome (55401610455).

The spelling of 21300310143 in words is "twenty-one billion, three hundred million, three hundred ten thousand, one hundred forty-three".