215513150313 has 4 divisors (see below), whose sum is σ = 287350867088. Its totient is φ = 143675433540.

The previous prime is 215513150311. The next prime is 215513150323. The reversal of 215513150313 is 313051315512.

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 not a de Polignac number, because 215513150313 - 2¹ = 215513150311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215513150311) 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, 35918858383 + ... + 35918858388.

It is an arithmetic number, because the mean of its divisors is an integer number (71837716772).

Almost surely, 2^215513150313 is an apocalyptic number.

It is an amenable number.

215513150313 is a deficient number, since it is larger than the sum of its proper divisors (71837716775).

215513150313 is an equidigital number, since it uses as much as digits as its factorization.

215513150313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71837716774.

The product of its (nonzero) digits is 6750, while the sum is 30.

Adding to 215513150313 its reverse (313051315512), we get a palindrome (528564465825).

The spelling of 215513150313 in words is "two hundred fifteen billion, five hundred thirteen million, one hundred fifty thousand, three hundred thirteen".