231330319 has 16 divisors (see below), whose sum is σ = 258007680. Its totient is φ = 205622560.

The previous prime is 231330317. The next prime is 231330331. The reversal of 231330319 is 913033132.

It is not a de Polignac number, because 231330319 - 2¹ = 231330317 is a prime.

It is a super-2 number, since 2×231330319² = 107027432977283522, 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 = 231330293 and 231330302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231330311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243804 + ... + 244750.

It is an arithmetic number, because the mean of its divisors is an integer number (16125480).

Almost surely, 2^231330319 is an apocalyptic number.

231330319 is a deficient number, since it is larger than the sum of its proper divisors (26677361).

231330319 is a wasteful number, since it uses less digits than its factorization.

231330319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 231330319 is about 15209.5469689271. The cubic root of 231330319 is about 613.8715677077.

The spelling of 231330319 in words is "two hundred thirty-one million, three hundred thirty thousand, three hundred nineteen".