1131108001 has 4 divisors (see below), whose sum is σ = 1131468100. Its totient is φ = 1130747904.

The previous prime is 1131107987. The next prime is 1131108049. The reversal of 1131108001 is 1008011311.

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 555827776 + 575280225 = 23576^2 + 23985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131108001 - 2¹¹ = 1131105953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131108061) 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, 175296 + ... + 181633.

It is an arithmetic number, because the mean of its divisors is an integer number (282867025).

Almost surely, 2^1131108001 is an apocalyptic number.

It is an amenable number.

1131108001 is a deficient number, since it is larger than the sum of its proper divisors (360099).

1131108001 is an equidigital number, since it uses as much as digits as its factorization.

1131108001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360098.

The product of its (nonzero) digits is 24, while the sum is 16.

The square root of 1131108001 is about 33631.9491109272. The cubic root of 1131108001 is about 1041.9207603655.

Adding to 1131108001 its reverse (1008011311), we get a palindrome (2139119312).

The spelling of 1131108001 in words is "one billion, one hundred thirty-one million, one hundred eight thousand, one".