215012504243 has 2 divisors, whose sum is σ = 215012504244. Its totient is φ = 215012504242.

The previous prime is 215012504183. The next prime is 215012504249. The reversal of 215012504243 is 342405210512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215012504243 - 2²⁰ = 215011455667 is a prime.

It is not a weakly prime, because it can be changed into another prime (215012504249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107506252121 + 107506252122.

It is an arithmetic number, because the mean of its divisors is an integer number (107506252122).

Almost surely, 2^215012504243 is an apocalyptic number.

215012504243 is a deficient number, since it is larger than the sum of its proper divisors (1).

215012504243 is an equidigital number, since it uses as much as digits as its factorization.

215012504243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 215012504243 its reverse (342405210512), we get a palindrome (557417714755).

The spelling of 215012504243 in words is "two hundred fifteen billion, twelve million, five hundred four thousand, two hundred forty-three".