252111311 has 2 divisors, whose sum is σ = 252111312. Its totient is φ = 252111310.

The previous prime is 252111283. The next prime is 252111329. The reversal of 252111311 is 113111252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252111311 - 2¹⁸ = 251849167 is a prime.

It is a super-2 number, since 2×252111311² = 127120226268277442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252111311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252111331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126055655 + 126055656.

It is an arithmetic number, because the mean of its divisors is an integer number (126055656).

Almost surely, 2^252111311 is an apocalyptic number.

252111311 is a deficient number, since it is larger than the sum of its proper divisors (1).

252111311 is an equidigital number, since it uses as much as digits as its factorization.

252111311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60, while the sum is 17.

The square root of 252111311 is about 15878.0134462722. The cubic root of 252111311 is about 631.7289461161.

Adding to 252111311 its reverse (113111252), we get a palindrome (365222563).

The spelling of 252111311 in words is "two hundred fifty-two million, one hundred eleven thousand, three hundred eleven".