2135531311 has 2 divisors, whose sum is σ = 2135531312. Its totient is φ = 2135531310.

The previous prime is 2135531309. The next prime is 2135531323. The reversal of 2135531311 is 1131355312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2135531311 - 2¹ = 2135531309 is a prime.

It is a super-2 number, since 2×2135531311² = 9120987960522757442, which contains 22 as substring.

Together with 2135531309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135531351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067765655 + 1067765656.

It is an arithmetic number, because the mean of its divisors is an integer number (1067765656).

Almost surely, 2^2135531311 is an apocalyptic number.

2135531311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135531311 is an equidigital number, since it uses as much as digits as its factorization.

2135531311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 25.

The square root of 2135531311 is about 46211.8092158271. The cubic root of 2135531311 is about 1287.7611369142.

Adding to 2135531311 its reverse (1131355312), we get a palindrome (3266886623).

The spelling of 2135531311 in words is "two billion, one hundred thirty-five million, five hundred thirty-one thousand, three hundred eleven".