1243044130441 has 2 divisors, whose sum is σ = 1243044130442. Its totient is φ = 1243044130440.

The previous prime is 1243044130409. The next prime is 1243044130457. The reversal of 1243044130441 is 1440314403421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1199736855625 + 43307274816 = 1095325^2 + 208104^2 .

It is an emirp because it is prime and its reverse (1440314403421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1243044130441 - 2⁵ = 1243044130409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1243045130441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621522065220 + 621522065221.

It is an arithmetic number, because the mean of its divisors is an integer number (621522065221).

Almost surely, 2^{1243044130441} is an apocalyptic number.

It is an amenable number.

1243044130441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243044130441 is an equidigital number, since it uses as much as digits as its factorization.

1243044130441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1243044130441 its reverse (1440314403421), we get a palindrome (2683358533862).

The spelling of 1243044130441 in words is "one trillion, two hundred forty-three billion, forty-four million, one hundred thirty thousand, four hundred forty-one".