1443630633121 has 2 divisors, whose sum is σ = 1443630633122. Its totient is φ = 1443630633120.

The previous prime is 1443630633077. The next prime is 1443630633161. The reversal of 1443630633121 is 1213360363441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1002874062096 + 440756571025 = 1001436^2 + 663895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443630633121 - 2²¹ = 1443628535969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1443630633161) 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, 721815316560 + 721815316561.

It is an arithmetic number, because the mean of its divisors is an integer number (721815316561).

Almost surely, 2^{1443630633121} is an apocalyptic number.

It is an amenable number.

1443630633121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443630633121 is an equidigital number, since it uses as much as digits as its factorization.

1443630633121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

Adding to 1443630633121 its reverse (1213360363441), we get a palindrome (2656990996562).

The spelling of 1443630633121 in words is "one trillion, four hundred forty-three billion, six hundred thirty million, six hundred thirty-three thousand, one hundred twenty-one".