215113255099 has 2 divisors, whose sum is σ = 215113255100. Its totient is φ = 215113255098.

The previous prime is 215113255081. The next prime is 215113255121. The reversal of 215113255099 is 990552311512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215113255099 - 2⁷ = 215113254971 is a prime.

It is not a weakly prime, because it can be changed into another prime (215113255039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107556627549 + 107556627550.

It is an arithmetic number, because the mean of its divisors is an integer number (107556627550).

Almost surely, 2^215113255099 is an apocalyptic number.

215113255099 is a deficient number, since it is larger than the sum of its proper divisors (1).

215113255099 is an equidigital number, since it uses as much as digits as its factorization.

215113255099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 43.

The spelling of 215113255099 in words is "two hundred fifteen billion, one hundred thirteen million, two hundred fifty-five thousand, ninety-nine".