1215325542071 has 2 divisors, whose sum is σ = 1215325542072. Its totient is φ = 1215325542070.

The previous prime is 1215325542043. The next prime is 1215325542097. The reversal of 1215325542071 is 1702455235121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215325542071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215325548071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607662771035 + 607662771036.

It is an arithmetic number, because the mean of its divisors is an integer number (607662771036).

Almost surely, 2^{1215325542071} is an apocalyptic number.

1215325542071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215325542071 is an equidigital number, since it uses as much as digits as its factorization.

1215325542071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 1215325542071 in words is "one trillion, two hundred fifteen billion, three hundred twenty-five million, five hundred forty-two thousand, seventy-one".