1120105553 has 6 divisors (see below), whose sum is σ = 1302979986. Its totient is φ = 960090432.

The previous prime is 1120105549. The next prime is 1120105559. The reversal of 1120105553 is 3555010211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1106028049 + 14077504 = 33257^2 + 3752^2 .

It is not a de Polignac number, because 1120105553 - 2² = 1120105549 is a prime.

It is a super-2 number, since 2×1120105553² = 2509272899722871618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1120105559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11429600 + ... + 11429697.

It is an arithmetic number, because the mean of its divisors is an integer number (217163331).

Almost surely, 2^1120105553 is an apocalyptic number.

It is an amenable number.

1120105553 is a deficient number, since it is larger than the sum of its proper divisors (182874433).

1120105553 is an equidigital number, since it uses as much as digits as its factorization.

1120105553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22859311 (or 22859304 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1120105553 is about 33467.9780237767. The cubic root of 1120105553 is about 1038.5314433531.

Adding to 1120105553 its reverse (3555010211), we get a palindrome (4675115764).

The spelling of 1120105553 in words is "one billion, one hundred twenty million, one hundred five thousand, five hundred fifty-three".