1101206555 has 4 divisors (see below), whose sum is σ = 1321447872. Its totient is φ = 880965240.

The previous prime is 1101206549. The next prime is 1101206611. The reversal of 1101206555 is 5556021011.

1101206555 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5556021011 = 47 ⋅118213213.

It is not a de Polignac number, because 1101206555 - 2⁴ = 1101206539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110120651 + ... + 110120660.

It is an arithmetic number, because the mean of its divisors is an integer number (330361968).

Almost surely, 2^1101206555 is an apocalyptic number.

1101206555 is a deficient number, since it is larger than the sum of its proper divisors (220241317).

1101206555 is an equidigital number, since it uses as much as digits as its factorization.

1101206555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220241316.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1101206555 is about 33184.4324194343. The cubic root of 1101206555 is about 1032.6574026163.

Adding to 1101206555 its reverse (5556021011), we get a palindrome (6657227566).

The spelling of 1101206555 in words is "one billion, one hundred one million, two hundred six thousand, five hundred fifty-five".