1215130004311 has 2 divisors, whose sum is σ = 1215130004312. Its totient is φ = 1215130004310.

The previous prime is 1215130004267. The next prime is 1215130004321. The reversal of 1215130004311 is 1134000315121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1215130004311 - 2¹¹ = 1215130002263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215130004321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607565002155 + 607565002156.

It is an arithmetic number, because the mean of its divisors is an integer number (607565002156).

Almost surely, 2^{1215130004311} is an apocalyptic number.

1215130004311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215130004311 is an equidigital number, since it uses as much as digits as its factorization.

1215130004311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 1215130004311 its reverse (1134000315121), we get a palindrome (2349130319432).

The spelling of 1215130004311 in words is "one trillion, two hundred fifteen billion, one hundred thirty million, four thousand, three hundred eleven".