2002021311 has 16 divisors (see below), whose sum is σ = 2729466720. Its totient is φ = 1304808960.

The previous prime is 2002021289. The next prime is 2002021319. The reversal of 2002021311 is 1131202002.

It is not a de Polignac number, because 2002021311 - 2⁷ = 2002021183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002021319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22275 + ... + 67083.

It is an arithmetic number, because the mean of its divisors is an integer number (170591670).

Almost surely, 2^2002021311 is an apocalyptic number.

2002021311 is a deficient number, since it is larger than the sum of its proper divisors (727445409).

2002021311 is a wasteful number, since it uses less digits than its factorization.

2002021311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45146.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2002021311 is about 44743.9527869409. The cubic root of 2002021311 is about 1260.3453556975.

Adding to 2002021311 its reverse (1131202002), we get a palindrome (3133223313).

The spelling of 2002021311 in words is "two billion, two million, twenty-one thousand, three hundred eleven".