215320143241 has 4 divisors (see below), whose sum is σ = 246080163712. Its totient is φ = 184560122772.

The previous prime is 215320143229. The next prime is 215320143253. The reversal of 215320143241 is 142341023512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (215320143229) and next prime (215320143253).

It is a cyclic number.

It is not a de Polignac number, because 215320143241 - 2¹¹ = 215320141193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215320443241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15380010225 + ... + 15380010238.

It is an arithmetic number, because the mean of its divisors is an integer number (61520040928).

Almost surely, 2^215320143241 is an apocalyptic number.

It is an amenable number.

215320143241 is a deficient number, since it is larger than the sum of its proper divisors (30760020471).

215320143241 is an equidigital number, since it uses as much as digits as its factorization.

215320143241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30760020470.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 215320143241 its reverse (142341023512), we get a palindrome (357661166753).

The spelling of 215320143241 in words is "two hundred fifteen billion, three hundred twenty million, one hundred forty-three thousand, two hundred forty-one".