2111132231 has 4 divisors (see below), whose sum is σ = 2273527032. Its totient is φ = 1948737432.

The previous prime is 2111132213. The next prime is 2111132239. The reversal of 2111132231 is 1322311112.

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 2111132231 - 2⁶ = 2111132167 is a prime.

It is a super-2 number, since 2×2111132231² = 8913758593534074722, 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 (2111132239) 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, 81197381 + ... + 81197406.

It is an arithmetic number, because the mean of its divisors is an integer number (568381758).

Almost surely, 2^2111132231 is an apocalyptic number.

2111132231 is a deficient number, since it is larger than the sum of its proper divisors (162394801).

2111132231 is a wasteful number, since it uses less digits than its factorization.

2111132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162394800.

The product of its digits is 72, while the sum is 17.

The square root of 2111132231 is about 45947.0590027262. The cubic root of 2111132231 is about 1282.8379883017.

Adding to 2111132231 its reverse (1322311112), we get a palindrome (3433443343).

The spelling of 2111132231 in words is "two billion, one hundred eleven million, one hundred thirty-two thousand, two hundred thirty-one".