234320331 has 16 divisors (see below), whose sum is σ = 375852800. Its totient is φ = 126849888.

The previous prime is 234320327. The next prime is 234320347. The reversal of 234320331 is 133023432.

It is not a de Polignac number, because 234320331 - 2² = 234320327 is a prime.

It is a super-2 number, since 2×234320331² = 109812035039899122, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234320298 and 234320307.

It is not an unprimeable number, because it can be changed into a prime (234320531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293236 + ... + 294033.

It is an arithmetic number, because the mean of its divisors is an integer number (23490800).

Almost surely, 2^234320331 is an apocalyptic number.

234320331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

234320331 is a deficient number, since it is larger than the sum of its proper divisors (141532469).

234320331 is a wasteful number, since it uses less digits than its factorization.

234320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587298.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 234320331 is about 15307.5253062015. The cubic root of 234320331 is about 616.5050769534.

Adding to 234320331 its reverse (133023432), we get a palindrome (367343763).

The spelling of 234320331 in words is "two hundred thirty-four million, three hundred twenty thousand, three hundred thirty-one".