215289353295131 has 2 divisors, whose sum is σ = 215289353295132. Its totient is φ = 215289353295130.

The previous prime is 215289353295113. The next prime is 215289353295167. The reversal of 215289353295131 is 131592353982512.

Together with previous prime (215289353295113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215289353295131 is a prime.

It is a super-2 number, since 2×215289353295131² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (215289353295631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107644676647565 + 107644676647566.

It is an arithmetic number, because the mean of its divisors is an integer number (107644676647566).

Almost surely, 2^{215289353295131} is an apocalyptic number.

215289353295131 is a deficient number, since it is larger than the sum of its proper divisors (1).

215289353295131 is an equidigital number, since it uses as much as digits as its factorization.

215289353295131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496000, while the sum is 59.

The spelling of 215289353295131 in words is "two hundred fifteen trillion, two hundred eighty-nine billion, three hundred fifty-three million, two hundred ninety-five thousand, one hundred thirty-one".