1100055331 has 16 divisors (see below), whose sum is σ = 1170534400. Its totient is φ = 1030887648.

The previous prime is 1100055317. The next prime is 1100055343. The reversal of 1100055331 is 1335500011.

It is a cyclic number.

It is not a de Polignac number, because 1100055331 - 2¹³ = 1100047139 is a prime.

It is a super-2 number, since 2×1100055331² = 2420243462523039122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100055299 and 1100055308.

It is not an unprimeable number, because it can be changed into a prime (1100055301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1551205 + ... + 1551913.

It is an arithmetic number, because the mean of its divisors is an integer number (73158400).

Almost surely, 2^1100055331 is an apocalyptic number.

1100055331 is a deficient number, since it is larger than the sum of its proper divisors (70479069).

1100055331 is a wasteful number, since it uses less digits than its factorization.

1100055331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 1100055331 is about 33167.0820392750. The cubic root of 1100055331 is about 1032.2974233756.

Adding to 1100055331 its reverse (1335500011), we get a palindrome (2435555342).

It can be divided in two parts, 1100055 and 331, that added together give a triangular number (1100386 = T₁₄₈₃).

The spelling of 1100055331 in words is "one billion, one hundred million, fifty-five thousand, three hundred thirty-one".