1155120105323 has 8 divisors (see below), whose sum is σ = 1220402680320. Its totient is φ = 1090286208360.

The previous prime is 1155120105317. The next prime is 1155120105353. The reversal of 1155120105323 is 3235010215511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155120105323 - 2⁶ = 1155120105259 is a prime.

It is a super-2 number, since 2×1155120105323² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155120105353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112164215 + ... + 112174512.

It is an arithmetic number, because the mean of its divisors is an integer number (152550335040).

Almost surely, 2^{1155120105323} is an apocalyptic number.

1155120105323 is a deficient number, since it is larger than the sum of its proper divisors (65282574997).

1155120105323 is a wasteful number, since it uses less digits than its factorization.

1155120105323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224339017.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 1155120105323 in words is "one trillion, one hundred fifty-five billion, one hundred twenty million, one hundred five thousand, three hundred twenty-three".