2311232133 has 16 divisors (see below), whose sum is σ = 3522960896. Its totient is φ = 1320297840.

The previous prime is 2311232117. The next prime is 2311232153. The reversal of 2311232133 is 3312321132.

It is not a de Polignac number, because 2311232133 - 2⁴ = 2311232117 is a prime.

It is a super-2 number, since 2×2311232133² = 10683587945223459378, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311232153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61398 + ... + 91608.

It is an arithmetic number, because the mean of its divisors is an integer number (220185056).

Almost surely, 2^2311232133 is an apocalyptic number.

It is an amenable number.

2311232133 is a deficient number, since it is larger than the sum of its proper divisors (1211728763).

2311232133 is a wasteful number, since it uses less digits than its factorization.

2311232133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33864.

The product of its digits is 648, while the sum is 21.

The square root of 2311232133 is about 48075.2756934373. The cubic root of 2311232133 is about 1322.1513992402.

Adding to 2311232133 its reverse (3312321132), we get a palindrome (5623553265).

The spelling of 2311232133 in words is "two billion, three hundred eleven million, two hundred thirty-two thousand, one hundred thirty-three".