1123410112440 has 256 divisors, whose sum is σ = 4261029027840. Its totient is φ = 230147904000.

The previous prime is 1123410112397. The next prime is 1123410112441. The reversal of 1123410112440 is 442110143211.

It is a happy number.

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 1123410112440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123410112441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 200166 + ... + 1512245.

It is an arithmetic number, because the mean of its divisors is an integer number (16644644640).

Almost surely, 2^{1123410112440} is an apocalyptic number.

1123410112440 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 1123410112440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2130514513920).

1123410112440 is an abundant number, since it is smaller than the sum of its proper divisors (3137618915400).

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

1123410112440 is a wasteful number, since it uses less digits than its factorization.

1123410112440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712514 (or 1712510 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1123410112440 its reverse (442110143211), we get a palindrome (1565520255651).

The spelling of 1123410112440 in words is "one trillion, one hundred twenty-three billion, four hundred ten million, one hundred twelve thousand, four hundred forty".