1421143214189 has 2 divisors, whose sum is σ = 1421143214190. Its totient is φ = 1421143214188.

The previous prime is 1421143214147. The next prime is 1421143214191. The reversal of 1421143214189 is 9814123411241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291593609289 + 129549604900 = 1136483^2 + 359930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421143214189 - 2²⁴ = 1421126436973 is a prime.

Together with 1421143214191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421143214119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710571607094 + 710571607095.

It is an arithmetic number, because the mean of its divisors is an integer number (710571607095).

Almost surely, 2^{1421143214189} is an apocalyptic number.

It is an amenable number.

1421143214189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421143214189 is an equidigital number, since it uses as much as digits as its factorization.

1421143214189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 41.

The spelling of 1421143214189 in words is "one trillion, four hundred twenty-one billion, one hundred forty-three million, two hundred fourteen thousand, one hundred eighty-nine".