215053133311 has 2 divisors, whose sum is σ = 215053133312. Its totient is φ = 215053133310.

The previous prime is 215053133209. The next prime is 215053133329. The reversal of 215053133311 is 113331350512.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215053133311 - 2¹⁵ = 215053100543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215053133311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215053133371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107526566655 + 107526566656.

It is an arithmetic number, because the mean of its divisors is an integer number (107526566656).

Almost surely, 2^215053133311 is an apocalyptic number.

215053133311 is a deficient number, since it is larger than the sum of its proper divisors (1).

215053133311 is an equidigital number, since it uses as much as digits as its factorization.

215053133311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 28.

Adding to 215053133311 its reverse (113331350512), we get a palindrome (328384483823).

The spelling of 215053133311 in words is "two hundred fifteen billion, fifty-three million, one hundred thirty-three thousand, three hundred eleven".