215340115540311 has 12 divisors (see below), whose sum is σ = 311144432229592. Its totient is φ = 143515031486256.

The previous prime is 215340115540301. The next prime is 215340115540313. The reversal of 215340115540311 is 113045511043512.

215340115540311 is a `hidden beast` number, since 2 + 1 + 53 + 40 + 1 + 1 + 554 + 0 + 3 + 11 = 666.

It is not a de Polignac number, because 215340115540311 - 2¹³ = 215340115532119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215340115540313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3753764776 + ... + 3753822141.

Almost surely, 2^{215340115540311} is an apocalyptic number.

215340115540311 is a deficient number, since it is larger than the sum of its proper divisors (95804316689281).

215340115540311 is a wasteful number, since it uses less digits than its factorization.

215340115540311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7507590110 (or 7507590107 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 215340115540311 its reverse (113045511043512), we get a palindrome (328385626583823).

The spelling of 215340115540311 in words is "two hundred fifteen trillion, three hundred forty billion, one hundred fifteen million, five hundred forty thousand, three hundred eleven".