1430401666121 has 2 divisors, whose sum is σ = 1430401666122. Its totient is φ = 1430401666120.

The previous prime is 1430401666091. The next prime is 1430401666157. The reversal of 1430401666121 is 1216661040341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1052255382025 + 378146284096 = 1025795^2 + 614936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430401666121 - 2¹⁴ = 1430401649737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1430401666021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715200833060 + 715200833061.

It is an arithmetic number, because the mean of its divisors is an integer number (715200833061).

Almost surely, 2^{1430401666121} is an apocalyptic number.

It is an amenable number.

1430401666121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430401666121 is an equidigital number, since it uses as much as digits as its factorization.

1430401666121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 1430401666121 in words is "one trillion, four hundred thirty billion, four hundred one million, six hundred sixty-six thousand, one hundred twenty-one".