1215411430441 has 4 divisors (see below), whose sum is σ = 1308904617412. Its totient is φ = 1121918243472.

The previous prime is 1215411430393. The next prime is 1215411430501. The reversal of 1215411430441 is 1440341145121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 831233358400 + 384178072041 = 911720^2 + 619821^2 .

It is not a de Polignac number, because 1215411430441 - 2⁹ = 1215411429929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1215411430741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46746593466 + ... + 46746593491.

It is an arithmetic number, because the mean of its divisors is an integer number (327226154353).

Almost surely, 2^{1215411430441} is an apocalyptic number.

It is an amenable number.

1215411430441 is a deficient number, since it is larger than the sum of its proper divisors (93493186971).

1215411430441 is an equidigital number, since it uses as much as digits as its factorization.

1215411430441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93493186970.

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

Adding to 1215411430441 its reverse (1440341145121), we get a palindrome (2655752575562).

The spelling of 1215411430441 in words is "one trillion, two hundred fifteen billion, four hundred eleven million, four hundred thirty thousand, four hundred forty-one".