21143469283 has 2 divisors, whose sum is σ = 21143469284. Its totient is φ = 21143469282.

The previous prime is 21143469257. The next prime is 21143469317. The reversal of 21143469283 is 38296434112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21143469283 - 2⁹ = 21143468771 is a prime.

It is a super-3 number, since 3×21143469283³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (21143469203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10571734641 + 10571734642.

It is an arithmetic number, because the mean of its divisors is an integer number (10571734642).

Almost surely, 2^21143469283 is an apocalyptic number.

21143469283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21143469283 is an equidigital number, since it uses as much as digits as its factorization.

21143469283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The spelling of 21143469283 in words is "twenty-one billion, one hundred forty-three million, four hundred sixty-nine thousand, two hundred eighty-three".