1011320055 has 48 divisors (see below), whose sum is σ = 1872655200. Its totient is φ = 503107584.

The previous prime is 1011320047. The next prime is 1011320069. The reversal of 1011320055 is 5500231101.

It is not a de Polignac number, because 1011320055 - 2³ = 1011320047 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 80596 + ... + 92294.

It is an arithmetic number, because the mean of its divisors is an integer number (39013650).

Almost surely, 2^1011320055 is an apocalyptic number.

1011320055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1011320055 is a deficient number, since it is larger than the sum of its proper divisors (861335145).

1011320055 is a wasteful number, since it uses less digits than its factorization.

1011320055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11840 (or 11837 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1011320055 is about 31801.2587015043. The cubic root of 1011320055 is about 1003.7592023565.

Adding to 1011320055 its reverse (5500231101), we get a palindrome (6511551156).

The spelling of 1011320055 in words is "one billion, eleven million, three hundred twenty thousand, fifty-five".