2111332231 has 8 divisors (see below), whose sum is σ = 2227327280. Its totient is φ = 1995824448.

The previous prime is 2111332199. The next prime is 2111332243. The reversal of 2111332231 is 1322331112.

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

It is not a de Polignac number, because 2111332231 - 2⁵ = 2111332199 is a prime.

It is a super-2 number, since 2×2111332231² = 8915447579318874722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111332199 and 2111332208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111332631) 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, 112896 + ... + 130261.

It is an arithmetic number, because the mean of its divisors is an integer number (278415910).

Almost surely, 2^2111332231 is an apocalyptic number.

2111332231 is a deficient number, since it is larger than the sum of its proper divisors (115995049).

2111332231 is a wasteful number, since it uses less digits than its factorization.

2111332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243633.

The product of its digits is 216, while the sum is 19.

The square root of 2111332231 is about 45949.2353690461. The cubic root of 2111332231 is about 1282.8784972905.

Adding to 2111332231 its reverse (1322331112), we get a palindrome (3433663343).

The spelling of 2111332231 in words is "two billion, one hundred eleven million, three hundred thirty-two thousand, two hundred thirty-one".