2231431219 has 2 divisors, whose sum is σ = 2231431220. Its totient is φ = 2231431218.

The previous prime is 2231431217. The next prime is 2231431259. The reversal of 2231431219 is 9121341322.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2231431219 - 2¹ = 2231431217 is a prime.

It is a super-3 number, since 3×2231431219³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2231431217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2231431211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115715609 + 1115715610.

It is an arithmetic number, because the mean of its divisors is an integer number (1115715610).

Almost surely, 2^2231431219 is an apocalyptic number.

2231431219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231431219 is an equidigital number, since it uses as much as digits as its factorization.

2231431219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 2231431219 is about 47238.0272555914. The cubic root of 2231431219 is about 1306.7559962602.

The spelling of 2231431219 in words is "two billion, two hundred thirty-one million, four hundred thirty-one thousand, two hundred nineteen".