1121314012440 has 128 divisors (see below), whose sum is σ = 3455349174720. Its totient is φ = 290894284800.

The previous prime is 1121314012433. The next prime is 1121314012453. The reversal of 1121314012440 is 442104131211.

It is a happy number.

It is a super-2 number, since 2×1121314012440² (a number of 25 digits) contains 22 as substring.

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 1121314012440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42881770 + ... + 42907910.

Almost surely, 2^{1121314012440} is an apocalyptic number.

1121314012440 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 1121314012440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1727674587360).

1121314012440 is an abundant number, since it is smaller than the sum of its proper divisors (2334035162280).

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

1121314012440 is a wasteful number, since it uses less digits than its factorization.

1121314012440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35853 (or 35849 counting only the distinct ones).

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

Adding to 1121314012440 its reverse (442104131211), we get a palindrome (1563418143651).

The spelling of 1121314012440 in words is "one trillion, one hundred twenty-one billion, three hundred fourteen million, twelve thousand, four hundred forty".