1105113031 has 4 divisors (see below), whose sum is σ = 1205577864. Its totient is φ = 1004648200.

The previous prime is 1105113001. The next prime is 1105113047. The reversal of 1105113031 is 1303115011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1105113031 - 2¹¹ = 1105110983 is a prime.

It is a super-2 number, since 2×1105113031² = 2442549622572013922, 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 = 1105112996 and 1105113014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105113001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50232400 + ... + 50232421.

It is an arithmetic number, because the mean of its divisors is an integer number (301394466).

Almost surely, 2^1105113031 is an apocalyptic number.

1105113031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1105113031 is a deficient number, since it is larger than the sum of its proper divisors (100464833).

1105113031 is a wasteful number, since it uses less digits than its factorization.

1105113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100464832.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1105113031 is about 33243.2403805646. The cubic root of 1105113031 is about 1033.8770619439.

Adding to 1105113031 its reverse (1303115011), we get a palindrome (2408228042).

The spelling of 1105113031 in words is "one billion, one hundred five million, one hundred thirteen thousand, thirty-one".