1230111322440 has 512 divisors, whose sum is σ = 4958380707840. Its totient is φ = 235777536000.

The previous prime is 1230111322411. The next prime is 1230111322457. The reversal of 1230111322440 is 442231110321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1230111322440.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 228345427 + ... + 228350813.

It is an arithmetic number, because the mean of its divisors is an integer number (9684337320).

Almost surely, 2^{1230111322440} is an apocalyptic number.

1230111322440 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 1230111322440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479190353920).

1230111322440 is an abundant number, since it is smaller than the sum of its proper divisors (3728269385400).

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

1230111322440 is a wasteful number, since it uses less digits than its factorization.

1230111322440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333 (or 7329 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1230111322440 its reverse (442231110321), we get a palindrome (1672342432761).

It can be divided in two parts, 1230111 and 322440, that added together give a palindrome (1552551).

The spelling of 1230111322440 in words is "one trillion, two hundred thirty billion, one hundred eleven million, three hundred twenty-two thousand, four hundred forty".