2002311323 has 4 divisors (see below), whose sum is σ = 2120094360. Its totient is φ = 1884528288.

The previous prime is 2002311247. The next prime is 2002311329. The reversal of 2002311323 is 3231132002.

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 2002311323 - 2¹⁴ = 2002294939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 117783019 = 2002311323 / (2 + 0 + 0 + 2 + 3 + 1 + 1 + 3 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002311329) 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, 58891493 + ... + 58891526.

It is an arithmetic number, because the mean of its divisors is an integer number (530023590).

Almost surely, 2^2002311323 is an apocalyptic number.

2002311323 is a deficient number, since it is larger than the sum of its proper divisors (117783037).

2002311323 is a wasteful number, since it uses less digits than its factorization.

2002311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117783036.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2002311323 is about 44747.1934650655. The cubic root of 2002311323 is about 1260.4062104658.

Adding to 2002311323 its reverse (3231132002), we get a palindrome (5233443325).

The spelling of 2002311323 in words is "two billion, two million, three hundred eleven thousand, three hundred twenty-three".