1125242401440 has 48 divisors (see below), whose sum is σ = 3544513566048. Its totient is φ = 300064640256.

The previous prime is 1125242401399. The next prime is 1125242401441. The reversal of 1125242401440 is 441042425211.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1125242401440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1125242401398 and 1125242401407.

It is not an unprimeable number, because it can be changed into a prime (1125242401441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172127022 + ... + 1172127981.

It is an arithmetic number, because the mean of its divisors is an integer number (73844032626).

Almost surely, 2^{1125242401440} is an apocalyptic number.

1125242401440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125242401440 is an abundant number, since it is smaller than the sum of its proper divisors (2419271164608).

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

1125242401440 is a wasteful number, since it uses less digits than its factorization.

1125242401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344255021 (or 2344255013 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 1125242401440 its reverse (441042425211), we get a palindrome (1566284826651).

The spelling of 1125242401440 in words is "one trillion, one hundred twenty-five billion, two hundred forty-two million, four hundred one thousand, four hundred forty".