1421120551439 has 2 divisors, whose sum is σ = 1421120551440. Its totient is φ = 1421120551438.

The previous prime is 1421120551399. The next prime is 1421120551451. The reversal of 1421120551439 is 9341550211241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421120551439 - 2⁸ = 1421120551183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421120553439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710560275719 + 710560275720.

It is an arithmetic number, because the mean of its divisors is an integer number (710560275720).

Almost surely, 2^{1421120551439} is an apocalyptic number.

1421120551439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421120551439 is an equidigital number, since it uses as much as digits as its factorization.

1421120551439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 1421120551439 in words is "one trillion, four hundred twenty-one billion, one hundred twenty million, five hundred fifty-one thousand, four hundred thirty-nine".