1231230223000 has 64 divisors (see below), whose sum is σ = 2948080655520. Its totient is φ = 481038768000.

The previous prime is 1231230222979. The next prime is 1231230223001. The reversal of 1231230223000 is 3220321321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231230223001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14273631 + ... + 14359630.

Almost surely, 2^{1231230223000} is an apocalyptic number.

1231230223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231230223000 is an abundant number, since it is smaller than the sum of its proper divisors (1716850432520).

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

1231230223000 is a wasteful number, since it uses less digits than its factorization.

1231230223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28633325 (or 28633311 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1231230223000 its reverse (3220321321), we get a palindrome (1234450544321).

The spelling of 1231230223000 in words is "one trillion, two hundred thirty-one billion, two hundred thirty million, two hundred twenty-three thousand".