1101001001055 has 8 divisors (see below), whose sum is σ = 1761601601712. Its totient is φ = 587200533888.

The previous prime is 1101001001047. The next prime is 1101001001057. The reversal of 1101001001055 is 5501001001011.

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

It is not a de Polignac number, because 1101001001055 - 2³ = 1101001001047 is a prime.

It is a super-2 number, since 2×1101001001055² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 73400066737 = 1101001001055 / (1 + 1 + 0 + 1 + 0 + 0 + 1 + 0 + 0 + 1 + 0 + 5 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101001001057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36700033354 + ... + 36700033383.

It is an arithmetic number, because the mean of its divisors is an integer number (220200200214).

Almost surely, 2^{1101001001055} is an apocalyptic number.

1101001001055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1101001001055 is a deficient number, since it is larger than the sum of its proper divisors (660600600657).

1101001001055 is an equidigital number, since it uses as much as digits as its factorization.

1101001001055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73400066745.

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 1101001001055 its reverse (5501001001011), we get a palindrome (6602002002066).

The spelling of 1101001001055 in words is "one trillion, one hundred one billion, one million, one thousand, fifty-five".