2136530311 has 16 divisors (see below), whose sum is σ = 2240900640. Its totient is φ = 2034385920.

The previous prime is 2136530309. The next prime is 2136530317. The reversal of 2136530311 is 1130356312.

It is a cyclic number.

It is not a de Polignac number, because 2136530311 - 2¹ = 2136530309 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 (2136530317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746395 + ... + 749251.

It is an arithmetic number, because the mean of its divisors is an integer number (140056290).

Almost surely, 2^2136530311 is an apocalyptic number.

2136530311 is a deficient number, since it is larger than the sum of its proper divisors (104370329).

2136530311 is a wasteful number, since it uses less digits than its factorization.

2136530311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2136530311 is about 46222.6168774551. The cubic root of 2136530311 is about 1287.9619101858.

Adding to 2136530311 its reverse (1130356312), we get a palindrome (3266886623).

The spelling of 2136530311 in words is "two billion, one hundred thirty-six million, five hundred thirty thousand, three hundred eleven".