2311303223 has 4 divisors (see below), whose sum is σ = 2313478608. Its totient is φ = 2309127840.

The previous prime is 2311303217. The next prime is 2311303231. The reversal of 2311303223 is 3223031132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2311303223 - 2⁴ = 2311303207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2311303195 and 2311303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311303283) 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, 1086098 + ... + 1088223.

It is an arithmetic number, because the mean of its divisors is an integer number (578369652).

Almost surely, 2^2311303223 is an apocalyptic number.

2311303223 is a deficient number, since it is larger than the sum of its proper divisors (2175385).

2311303223 is a wasteful number, since it uses less digits than its factorization.

2311303223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175384.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2311303223 is about 48076.0150490866. The cubic root of 2311303223 is about 1322.1649548927.

Adding to 2311303223 its reverse (3223031132), we get a palindrome (5534334355).

The spelling of 2311303223 in words is "two billion, three hundred eleven million, three hundred three thousand, two hundred twenty-three".