1231230410020 has 48 divisors (see below), whose sum is σ = 2805730538688. Its totient is φ = 451137847680.

The previous prime is 1231230409939. The next prime is 1231230410021. The reversal of 1231230410020 is 200140321321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231230410020.

It is not an unprimeable number, because it can be changed into a prime (1231230410021) by changing a digit.

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, 18040374 + ... + 18108493.

It is an arithmetic number, because the mean of its divisors is an integer number (58452719556).

Almost surely, 2^{1231230410020} is an apocalyptic number.

1231230410020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231230410020 is an abundant number, since it is smaller than the sum of its proper divisors (1574500128668).

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

1231230410020 is a wasteful number, since it uses less digits than its factorization.

1231230410020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36149020 (or 36149018 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1231230410020 its reverse (200140321321), we get a palindrome (1431370731341).

The spelling of 1231230410020 in words is "one trillion, two hundred thirty-one billion, two hundred thirty million, four hundred ten thousand, twenty".