215352842113 has 2 divisors, whose sum is σ = 215352842114. Its totient is φ = 215352842112.

The previous prime is 215352842093. The next prime is 215352842123. The reversal of 215352842113 is 311248253512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189985272129 + 25367569984 = 435873^2 + 159272^2 .

It is a cyclic number.

It is not a de Polignac number, because 215352842113 - 2³⁷ = 77913888641 is a prime.

It is a super-2 number, since 2×215352842113² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (215352842123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107676421056 + 107676421057.

It is an arithmetic number, because the mean of its divisors is an integer number (107676421057).

Almost surely, 2^215352842113 is an apocalyptic number.

It is an amenable number.

215352842113 is a deficient number, since it is larger than the sum of its proper divisors (1).

215352842113 is an equidigital number, since it uses as much as digits as its factorization.

215352842113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 37.

The spelling of 215352842113 in words is "two hundred fifteen billion, three hundred fifty-two million, eight hundred forty-two thousand, one hundred thirteen".