1105511331 has 12 divisors (see below), whose sum is σ = 1510850456. Its totient is φ = 719028480.

The previous prime is 1105511321. The next prime is 1105511359. The reversal of 1105511331 is 1331155011.

It is not a de Polignac number, because 1105511331 - 2¹⁴ = 1105494947 is a prime.

It is a super-2 number, since 2×1105511331² = 2444310605938783122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1105511298 and 1105511307.

It is not an unprimeable number, because it can be changed into a prime (1105511321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104566 + ... + 114651.

Almost surely, 2^1105511331 is an apocalyptic number.

1105511331 is a deficient number, since it is larger than the sum of its proper divisors (405339125).

1105511331 is an equidigital number, since it uses as much as digits as its factorization.

1105511331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219302 (or 219261 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 1105511331 is about 33249.2305324499. The cubic root of 1105511331 is about 1034.0012555059.

Adding to 1105511331 its reverse (1331155011), we get a palindrome (2436666342).

The spelling of 1105511331 in words is "one billion, one hundred five million, five hundred eleven thousand, three hundred thirty-one".