231020203120330 has 32 divisors (see below), whose sum is σ = 447827963832144. Its totient is φ = 85298970072576.

The previous prime is 231020203120327. The next prime is 231020203120339. The reversal of 231020203120330 is 33021302020132.

It can be written as a sum of positive squares in 8 ways, for example, as 135426309072961 + 95593894047369 = 11637281^2 + 9777213^2 .

It is not an unprimeable number, because it can be changed into a prime (231020203120339) 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, 5749422 + ... + 22250758.

Almost surely, 2^{231020203120330} is an apocalyptic number.

231020203120330 is a deficient number, since it is larger than the sum of its proper divisors (216807760711814).

231020203120330 is a wasteful number, since it uses less digits than its factorization.

231020203120330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16609050.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 231020203120330 its reverse (33021302020132), we get a palindrome (264041505140462).

The spelling of 231020203120330 in words is "two hundred thirty-one trillion, twenty billion, two hundred three million, one hundred twenty thousand, three hundred thirty".