215430005243 has 8 divisors (see below), whose sum is σ = 215561840256. Its totient is φ = 215298216000.

The previous prime is 215430005237. The next prime is 215430005257. The reversal of 215430005243 is 342500034512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215430005243 - 2⁶ = 215430005179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215430005543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14258393 + ... + 14273493.

It is an arithmetic number, because the mean of its divisors is an integer number (26945230032).

Almost surely, 2^215430005243 is an apocalyptic number.

215430005243 is a deficient number, since it is larger than the sum of its proper divisors (131835013).

215430005243 is a wasteful number, since it uses less digits than its factorization.

215430005243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22885.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 215430005243 its reverse (342500034512), we get a palindrome (557930039755).

The spelling of 215430005243 in words is "two hundred fifteen billion, four hundred thirty million, five thousand, two hundred forty-three".