1103112001 has 4 divisors (see below), whose sum is σ = 1114034004. Its totient is φ = 1092190000.

The previous prime is 1103111857. The next prime is 1103112037. The reversal of 1103112001 is 1002113011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1012766976 + 90345025 = 31824^2 + 9505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103112001 - 2⁹ = 1103111489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103112041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5460850 + ... + 5461051.

It is an arithmetic number, because the mean of its divisors is an integer number (278508501).

Almost surely, 2^1103112001 is an apocalyptic number.

It is an amenable number.

1103112001 is a deficient number, since it is larger than the sum of its proper divisors (10922003).

1103112001 is a wasteful number, since it uses less digits than its factorization.

1103112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10922002.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1103112001 is about 33213.1299488621. The cubic root of 1103112001 is about 1033.2526706258.

Adding to 1103112001 its reverse (1002113011), we get a palindrome (2105225012).

It can be divided in two parts, 11031 and 12001, that added together give a palindrome (23032).

The spelling of 1103112001 in words is "one billion, one hundred three million, one hundred twelve thousand, one".