320123035231230 has 64 divisors (see below), whose sum is σ = 957874640491008. Its totient is φ = 66519072255360.

The previous prime is 320123035231213. The next prime is 320123035231231. The reversal of 320123035231230 is 32132530321023.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320123035231231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69290697957 + ... + 69290702576.

It is an arithmetic number, because the mean of its divisors is an integer number (14966791257672).

Almost surely, 2^{320123035231230} is an apocalyptic number.

320123035231230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320123035231230 is an abundant number, since it is smaller than the sum of its proper divisors (637751605259778).

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

320123035231230 is a wasteful number, since it uses less digits than its factorization.

320123035231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138581400561.

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 320123035231230 its reverse (32132530321023), we get a palindrome (352255565552253).

The spelling of 320123035231230 in words is "three hundred twenty trillion, one hundred twenty-three billion, thirty-five million, two hundred thirty-one thousand, two hundred thirty".