1230443512340 has 192 divisors, whose sum is σ = 3164266237440. Its totient is φ = 392537456640.

The previous prime is 1230443512297. The next prime is 1230443512393. The reversal of 1230443512340 is 432153440321.

It is a junction number, because it is equal to n+sod(n) for n = 1230443512297 and 1230443512306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46784234 + ... + 46810526.

It is an arithmetic number, because the mean of its divisors is an integer number (16480553320).

Almost surely, 2^{1230443512340} is an apocalyptic number.

1230443512340 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 1230443512340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582133118720).

1230443512340 is an abundant number, since it is smaller than the sum of its proper divisors (1933822725100).

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

1230443512340 is a wasteful number, since it uses less digits than its factorization.

1230443512340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26642 (or 26640 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 1230443512340 its reverse (432153440321), we get a palindrome (1662596952661).

The spelling of 1230443512340 in words is "one trillion, two hundred thirty billion, four hundred forty-three million, five hundred twelve thousand, three hundred forty".