231133219 has 8 divisors (see below), whose sum is σ = 240102720. Its totient is φ = 222230400.

The previous prime is 231133211. The next prime is 231133237. The reversal of 231133219 is 912331132.

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

It is a cyclic number.

It is not a de Polignac number, because 231133219 - 2³ = 231133211 is a prime.

It is a super-2 number, since 2×231133219² = 106845129850603922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231133193 and 231133202.

It is not an unprimeable number, because it can be changed into a prime (231133211) 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 7 ways as a sum of consecutive naturals, for example, 9547 + ... + 23524.

It is an arithmetic number, because the mean of its divisors is an integer number (30012840).

Almost surely, 2^231133219 is an apocalyptic number.

231133219 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

231133219 is a deficient number, since it is larger than the sum of its proper divisors (8969501).

231133219 is a wasteful number, since it uses less digits than its factorization.

231133219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33341.

The product of its digits is 972, while the sum is 25.

The square root of 231133219 is about 15203.0661052302. The cubic root of 231133219 is about 613.6971728334.

The spelling of 231133219 in words is "two hundred thirty-one million, one hundred thirty-three thousand, two hundred nineteen".