1231130230320 has 80 divisors (see below), whose sum is σ = 3825197671680. Its totient is φ = 327553527552.

The previous prime is 1231130230301. The next prime is 1231130230331. The reversal of 1231130230320 is 230320311321.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5737134 + ... + 5947853.

It is an arithmetic number, because the mean of its divisors is an integer number (47814970896).

Almost surely, 2^{1231130230320} is an apocalyptic number.

1231130230320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231130230320 is an abundant number, since it is smaller than the sum of its proper divisors (2594067441360).

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

1231130230320 is a wasteful number, since it uses less digits than its factorization.

1231130230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685442 (or 11685436 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1231130230320 its reverse (230320311321), we get a palindrome (1461450541641).

The spelling of 1231130230320 in words is "one trillion, two hundred thirty-one billion, one hundred thirty million, two hundred thirty thousand, three hundred twenty".