1120100155 has 8 divisors (see below), whose sum is σ = 1359223200. Its totient is φ = 886011456.

The previous prime is 1120100087. The next prime is 1120100227. The reversal of 1120100155 is 5510010211.

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 1120100155 - 2¹⁹ = 1119575867 is a prime.

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, 1258095 + ... + 1258984.

It is an arithmetic number, because the mean of its divisors is an integer number (169902900).

Almost surely, 2^1120100155 is an apocalyptic number.

1120100155 is a deficient number, since it is larger than the sum of its proper divisors (239123045).

1120100155 is an equidigital number, since it uses as much as digits as its factorization.

1120100155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517173.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 1120100155 is about 33467.8973794291. The cubic root of 1120100155 is about 1038.5297750575.

Adding to 1120100155 its reverse (5510010211), we get a palindrome (6630110366).

The spelling of 1120100155 in words is "one billion, one hundred twenty million, one hundred thousand, one hundred fifty-five".