331140233 has 8 divisors (see below), whose sum is σ = 342128640. Its totient is φ = 320171040.

The previous prime is 331140217. The next prime is 331140247. The reversal of 331140233 is 332041133.

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 331140233 - 2⁴ = 331140217 is a prime.

It is a super-2 number, since 2×331140233² = 219307707822588578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331140533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35816 + ... + 44102.

It is an arithmetic number, because the mean of its divisors is an integer number (42766080).

Almost surely, 2^331140233 is an apocalyptic number.

It is an amenable number.

331140233 is a deficient number, since it is larger than the sum of its proper divisors (10988407).

331140233 is a wasteful number, since it uses less digits than its factorization.

331140233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9607.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 331140233 is about 18197.2589419396. The cubic root of 331140233 is about 691.8373164134.

Adding to 331140233 its reverse (332041133), we get a palindrome (663181366).

The spelling of 331140233 in words is "three hundred thirty-one million, one hundred forty thousand, two hundred thirty-three".