215249118323 has 2 divisors, whose sum is σ = 215249118324. Its totient is φ = 215249118322.

The previous prime is 215249118193. The next prime is 215249118341. The reversal of 215249118323 is 323811942512.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215249118323 - 2⁸ = 215249118067 is a prime.

It is not a weakly prime, because it can be changed into another prime (215249118353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107624559161 + 107624559162.

It is an arithmetic number, because the mean of its divisors is an integer number (107624559162).

Almost surely, 2^215249118323 is an apocalyptic number.

215249118323 is a deficient number, since it is larger than the sum of its proper divisors (1).

215249118323 is an equidigital number, since it uses as much as digits as its factorization.

215249118323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The spelling of 215249118323 in words is "two hundred fifteen billion, two hundred forty-nine million, one hundred eighteen thousand, three hundred twenty-three".