1125344321440 has 24 divisors (see below), whose sum is σ = 2658625959780. Its totient is φ = 450137728512.

The previous prime is 1125344321411. The next prime is 1125344321441. The reversal of 1125344321440 is 441234435211.

It can be written as a sum of positive squares in 2 ways, for example, as 1065841500816 + 59502820624 = 1032396^2 + 243932^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1125344321396 and 1125344321405.

It is not an unprimeable number, because it can be changed into a prime (1125344321441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3516700845 + ... + 3516701164.

Almost surely, 2^{1125344321440} is an apocalyptic number.

1125344321440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125344321440 is an abundant number, since it is smaller than the sum of its proper divisors (1533281638340).

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

1125344321440 is an equidigital number, since it uses as much as digits as its factorization.

1125344321440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033402024 (or 7033402016 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 1125344321440 its reverse (441234435211), we get a palindrome (1566578756651).

The spelling of 1125344321440 in words is "one trillion, one hundred twenty-five billion, three hundred forty-four million, three hundred twenty-one thousand, four hundred forty".