1215104315371 has 2 divisors, whose sum is σ = 1215104315372. Its totient is φ = 1215104315370.

The previous prime is 1215104315351. The next prime is 1215104315443. The reversal of 1215104315371 is 1735134015121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1215104315371 - 2⁵ = 1215104315339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1215104315351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607552157685 + 607552157686.

It is an arithmetic number, because the mean of its divisors is an integer number (607552157686).

Almost surely, 2^{1215104315371} is an apocalyptic number.

1215104315371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215104315371 is an equidigital number, since it uses as much as digits as its factorization.

1215104315371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 1215104315371 in words is "one trillion, two hundred fifteen billion, one hundred four million, three hundred fifteen thousand, three hundred seventy-one".