2002311111 has 8 divisors (see below), whose sum is σ = 2755869184. Its totient is φ = 1291813560.

The previous prime is 2002311107. The next prime is 2002311121. The reversal of 2002311111 is 1111132002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2002311111 - 2² = 2002311107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002311121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10765021 + ... + 10765206.

It is an arithmetic number, because the mean of its divisors is an integer number (344483648).

Almost surely, 2^2002311111 is an apocalyptic number.

2002311111 is a deficient number, since it is larger than the sum of its proper divisors (753558073).

2002311111 is a wasteful number, since it uses less digits than its factorization.

2002311111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21530261.

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

The square root of 2002311111 is about 44747.1910962018. The cubic root of 2002311111 is about 1260.4061659829.

Adding to 2002311111 its reverse (1111132002), we get a palindrome (3113443113).

The spelling of 2002311111 in words is "two billion, two million, three hundred eleven thousand, one hundred eleven".