2011023231 has 8 divisors (see below), whose sum is σ = 3064416384. Its totient is φ = 1149156120.

The previous prime is 2011023181. The next prime is 2011023247. The reversal of 2011023231 is 1323201102.

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

It is not a de Polignac number, because 2011023231 - 2⁶ = 2011023167 is a prime.

It is a super-2 number, since 2×2011023231² = 8088428871243358722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011023231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011023271) 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, 47881485 + ... + 47881526.

It is an arithmetic number, because the mean of its divisors is an integer number (383052048).

Almost surely, 2^2011023231 is an apocalyptic number.

2011023231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2011023231 is a deficient number, since it is larger than the sum of its proper divisors (1053393153).

2011023231 is an equidigital number, since it uses as much as digits as its factorization.

2011023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95763021.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2011023231 is about 44844.4336679593. The cubic root of 2011023231 is about 1262.2315436910.

Adding to 2011023231 its reverse (1323201102), we get a palindrome (3334224333).

The spelling of 2011023231 in words is "two billion, eleven million, twenty-three thousand, two hundred thirty-one".