2231191733 has 2 divisors, whose sum is σ = 2231191734. Its totient is φ = 2231191732.

The previous prime is 2231191663. The next prime is 2231191771. The reversal of 2231191733 is 3371911322.

2231191733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2210598289 + 20593444 = 47017^2 + 4538^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231191733 - 2⁸ = 2231191477 is a prime.

It is a super-3 number, since 3×2231191733³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231191733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231191133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115595866 + 1115595867.

It is an arithmetic number, because the mean of its divisors is an integer number (1115595867).

It is a self-describing number.

Almost surely, 2^2231191733 is an apocalyptic number.

It is an amenable number.

2231191733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231191733 is an equidigital number, since it uses as much as digits as its factorization.

2231191733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 32.

The square root of 2231191733 is about 47235.4923018698. The cubic root of 2231191733 is about 1306.7092458518.

The spelling of 2231191733 in words is "two billion, two hundred thirty-one million, one hundred ninety-one thousand, seven hundred thirty-three".