2000111231 has 4 divisors (see below), whose sum is σ = 2000233272. Its totient is φ = 1999989192.

The previous prime is 2000111221. The next prime is 2000111233. The reversal of 2000111231 is 1321110002.

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 2000111231 - 2²⁶ = 1933002367 is a prime.

It is a super-2 number, since 2×2000111231² = 8000889872744670722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000111233) 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, 31760 + ... + 70773.

It is an arithmetic number, because the mean of its divisors is an integer number (500058318).

Almost surely, 2^2000111231 is an apocalyptic number.

2000111231 is a deficient number, since it is larger than the sum of its proper divisors (122041).

2000111231 is a wasteful number, since it uses less digits than its factorization.

2000111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122040.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2000111231 is about 44722.6031330914. The cubic root of 2000111231 is about 1259.9444065083.

Adding to 2000111231 its reverse (1321110002), we get a palindrome (3321221233).

The spelling of 2000111231 in words is "two billion, one hundred eleven thousand, two hundred thirty-one".