1430015871421 has 2 divisors, whose sum is σ = 1430015871422. Its totient is φ = 1430015871420.

The previous prime is 1430015871419. The next prime is 1430015871443. The reversal of 1430015871421 is 1241785100341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 841780560196 + 588235311225 = 917486^2 + 766965^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430015871421 - 2¹ = 1430015871419 is a prime.

Together with 1430015871419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430015871821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715007935710 + 715007935711.

It is an arithmetic number, because the mean of its divisors is an integer number (715007935711).

Almost surely, 2^{1430015871421} is an apocalyptic number.

It is an amenable number.

1430015871421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430015871421 is an equidigital number, since it uses as much as digits as its factorization.

1430015871421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 1430015871421 in words is "one trillion, four hundred thirty billion, fifteen million, eight hundred seventy-one thousand, four hundred twenty-one".