2002311121 has 2 divisors, whose sum is σ = 2002311122. Its totient is φ = 2002311120.

The previous prime is 2002311107. The next prime is 2002311167. The reversal of 2002311121 is 1211132002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1979271121 + 23040000 = 44489^2 + 4800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002311121 - 2⁵ = 2002311089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002314121) 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 as a sum of consecutive naturals, namely, 1001155560 + 1001155561.

It is an arithmetic number, because the mean of its divisors is an integer number (1001155561).

Almost surely, 2^2002311121 is an apocalyptic number.

It is an amenable number.

2002311121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002311121 is an equidigital number, since it uses as much as digits as its factorization.

2002311121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2002311121 is about 44747.1912079406. The cubic root of 2002311121 is about 1260.4061680812.

Adding to 2002311121 its reverse (1211132002), we get a palindrome (3213443123).

The spelling of 2002311121 in words is "two billion, two million, three hundred eleven thousand, one hundred twenty-one".