1215411443041 has 2 divisors, whose sum is σ = 1215411443042. Its totient is φ = 1215411443040.

The previous prime is 1215411443027. The next prime is 1215411443063. The reversal of 1215411443041 is 1403441145121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1203839062416 + 11572380625 = 1097196^2 + 107575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1215411443041 - 2¹¹ = 1215411440993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1215411442994 and 1215411443012.

It is not a weakly prime, because it can be changed into another prime (1215411443941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607705721520 + 607705721521.

It is an arithmetic number, because the mean of its divisors is an integer number (607705721521).

Almost surely, 2^{1215411443041} is an apocalyptic number.

It is an amenable number.

1215411443041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215411443041 is an equidigital number, since it uses as much as digits as its factorization.

1215411443041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 1215411443041 its reverse (1403441145121), we get a palindrome (2618852588162).

The spelling of 1215411443041 in words is "one trillion, two hundred fifteen billion, four hundred eleven million, four hundred forty-three thousand, forty-one".