2311320653 has 4 divisors (see below), whose sum is σ = 2311570560. Its totient is φ = 2311070748.

The previous prime is 2311320647. The next prime is 2311320667. The reversal of 2311320653 is 3560231132.

2311320653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2311320653 - 2¹⁴ = 2311304269 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 (2311320673) 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, 110525 + ... + 129762.

It is an arithmetic number, because the mean of its divisors is an integer number (577892640).

Almost surely, 2^2311320653 is an apocalyptic number.

It is an amenable number.

2311320653 is a deficient number, since it is larger than the sum of its proper divisors (249907).

2311320653 is an equidigital number, since it uses as much as digits as its factorization.

2311320653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249906.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2311320653 is about 48076.1963241686. The cubic root of 2311320653 is about 1322.1682784545.

Adding to 2311320653 its reverse (3560231132), we get a palindrome (5871551785).

The spelling of 2311320653 in words is "two billion, three hundred eleven million, three hundred twenty thousand, six hundred fifty-three".