1231233243600 has 120 divisors (see below), whose sum is σ = 3951622651392. Its totient is φ = 327698508800.

The previous prime is 1231233243571. The next prime is 1231233243683. The reversal of 1231233243600 is 63423321321.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359472 + ... + 1609871.

Almost surely, 2^{1231233243600} is an apocalyptic number.

1231233243600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231233243600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975811325696).

1231233243600 is an abundant number, since it is smaller than the sum of its proper divisors (2720389407792).

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

1231233243600 is a wasteful number, since it uses less digits than its factorization.

1231233243600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969885 (or 1969874 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 1231233243600 its reverse (63423321321), we get a palindrome (1294656564921).

The spelling of 1231233243600 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-three million, two hundred forty-three thousand, six hundred".