331130234 has 4 divisors (see below), whose sum is σ = 496695354. Its totient is φ = 165565116.

The previous prime is 331130221. The next prime is 331130249. The reversal of 331130234 is 432031133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 191961025 + 139169209 = 13855^2 + 11797^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82782557 + ... + 82782560.

Almost surely, 2^331130234 is an apocalyptic number.

331130234 is a deficient number, since it is larger than the sum of its proper divisors (165565120).

331130234 is a wasteful number, since it uses less digits than its factorization.

331130234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165565119.

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

The square root of 331130234 is about 18196.9842006856. The cubic root of 331130234 is about 691.8303528471.

Adding to 331130234 its reverse (432031133), we get a palindrome (763161367).

The spelling of 331130234 in words is "three hundred thirty-one million, one hundred thirty thousand, two hundred thirty-four".