320233130 has 24 divisors (see below), whose sum is σ = 670529988. Its totient is φ = 109794048.

The previous prime is 320233091. The next prime is 320233139. The reversal of 320233130 is 31332023.

It can be written as a sum of positive squares in 2 ways, for example, as 261695329 + 58537801 = 16177^2 + 7651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320233099 and 320233108.

It is not an unprimeable number, because it can be changed into a prime (320233139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326279 + ... + 327258.

Almost surely, 2^320233130 is an apocalyptic number.

320233130 is an abundant number, since it is smaller than the sum of its proper divisors (350296858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320233130 is a wasteful number, since it uses less digits than its factorization.

320233130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653558 (or 653551 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 320233130 is about 17895.0588152149. The cubic root of 320233130 is about 684.1564411385.

Adding to 320233130 its reverse (31332023), we get a palindrome (351565153).

It can be divided in two parts, 32023 and 3130, that added together give a palindrome (35153).

The spelling of 320233130 in words is "three hundred twenty million, two hundred thirty-three thousand, one hundred thirty".