215320551211411 has 4 divisors (see below), whose sum is σ = 215321086679400. Its totient is φ = 215320015743424.

The previous prime is 215320551211327. The next prime is 215320551211459. The reversal of 215320551211411 is 114112155023512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215320551211411 - 2⁹ = 215320551210899 is a prime.

It is a super-2 number, since 2×215320551211411² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215320551211481) 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, 267130366 + ... + 267935203.

It is an arithmetic number, because the mean of its divisors is an integer number (53830271669850).

Almost surely, 2^{215320551211411} is an apocalyptic number.

215320551211411 is a deficient number, since it is larger than the sum of its proper divisors (535467989).

215320551211411 is an equidigital number, since it uses as much as digits as its factorization.

215320551211411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535467988.

The product of its (nonzero) digits is 12000, while the sum is 34.

The spelling of 215320551211411 in words is "two hundred fifteen trillion, three hundred twenty billion, five hundred fifty-one million, two hundred eleven thousand, four hundred eleven".