21143301203 has 2 divisors, whose sum is σ = 21143301204. Its totient is φ = 21143301202.

The previous prime is 21143301191. The next prime is 21143301271. The reversal of 21143301203 is 30210334112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21143301203 - 2²² = 21139106899 is a prime.

It is not a weakly prime, because it can be changed into another prime (21143301703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10571650601 + 10571650602.

It is an arithmetic number, because the mean of its divisors is an integer number (10571650602).

Almost surely, 2^21143301203 is an apocalyptic number.

21143301203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21143301203 is an equidigital number, since it uses as much as digits as its factorization.

21143301203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21143301203 its reverse (30210334112), we get a palindrome (51353635315).

The spelling of 21143301203 in words is "twenty-one billion, one hundred forty-three million, three hundred one thousand, two hundred three".