1155304453120 has 88 divisors (see below), whose sum is σ = 2771802988200. Its totient is φ = 462050721792.

The previous prime is 1155304453099. The next prime is 1155304453141. The reversal of 1155304453120 is 213544035511.

It is an interprime number because it is at equal distance from previous prime (1155304453099) and next prime (1155304453141).

It can be written as a sum of positive squares in 4 ways, for example, as 6230016 + 1155298223104 = 2496^2 + 1074848^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 44372266 + ... + 44398294.

Almost surely, 2^{1155304453120} is an apocalyptic number.

1155304453120 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 1155304453120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385901494100).

1155304453120 is an abundant number, since it is smaller than the sum of its proper divisors (1616498535080).

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

1155304453120 is an equidigital number, since it uses as much as digits as its factorization.

1155304453120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34723 (or 34705 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 1155304453120 its reverse (213544035511), we get a palindrome (1368848488631).

The spelling of 1155304453120 in words is "one trillion, one hundred fifty-five billion, three hundred four million, four hundred fifty-three thousand, one hundred twenty".