2011031231 has 8 divisors (see below), whose sum is σ = 2309318400. Its totient is φ = 1731988440.

The previous prime is 2011031227. The next prime is 2011031237. The reversal of 2011031231 is 1321301102.

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

It is a cyclic number.

It is not a de Polignac number, because 2011031231 - 2² = 2011031227 is a prime.

It is a super-2 number, since 2×2011031231² = 8088493224114750722, 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 (2011031237) 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, 4810871 + ... + 4811288.

It is an arithmetic number, because the mean of its divisors is an integer number (288664800).

Almost surely, 2^2011031231 is an apocalyptic number.

2011031231 is a deficient number, since it is larger than the sum of its proper divisors (298287169).

2011031231 is a wasteful number, since it uses less digits than its factorization.

2011031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622189.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2011031231 is about 44844.5228651170. The cubic root of 2011031231 is about 1262.2332174391.

Adding to 2011031231 its reverse (1321301102), we get a palindrome (3332332333).

The spelling of 2011031231 in words is "two billion, eleven million, thirty-one thousand, two hundred thirty-one".