2002312311233 has 4 divisors (see below), whose sum is σ = 2156336335188. Its totient is φ = 1848288287280.

The previous prime is 2002312311229. The next prime is 2002312311257. The reversal of 2002312311233 is 3321132132002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1238806842289 + 763505468944 = 1113017^2 + 873788^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002312311233 - 2² = 2002312311229 is a prime.

It is a super-3 number, since 3×2002312311233³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002312311199 and 2002312311208.

It is not an unprimeable number, because it can be changed into a prime (2002312911233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77012011958 + ... + 77012011983.

It is an arithmetic number, because the mean of its divisors is an integer number (539084083797).

Almost surely, 2^{2002312311233} is an apocalyptic number.

It is an amenable number.

2002312311233 is a deficient number, since it is larger than the sum of its proper divisors (154024023955).

2002312311233 is a wasteful number, since it uses less digits than its factorization.

2002312311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154024023954.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2002312311233 its reverse (3321132132002), we get a palindrome (5323444443235).

The spelling of 2002312311233 in words is "two trillion, two billion, three hundred twelve million, three hundred eleven thousand, two hundred thirty-three".