11101131001 has 6 divisors (see below), whose sum is σ = 11227272302. Its totient is φ = 10976391360.

The previous prime is 11101130983. The next prime is 11101131071. The reversal of 11101131001 is 10013110111.

It can be written as a sum of positive squares in 3 ways, for example, as 142181776 + 10958949225 = 11924^2 + 104685^2 .

It is not a de Polignac number, because 11101131001 - 2⁹ = 11101130489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11101131071) 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 5 ways as a sum of consecutive naturals, for example, 692820 + ... + 708661.

Almost surely, 2^11101131001 is an apocalyptic number.

It is an amenable number.

11101131001 is a deficient number, since it is larger than the sum of its proper divisors (126141301).

11101131001 is an frugal number, since it uses more digits than its factorization.

11101131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401659 (or 1401570 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 10.

Adding to 11101131001 its reverse (10013110111), we get a palindrome (21114241112).

The spelling of 11101131001 in words is "eleven billion, one hundred one million, one hundred thirty-one thousand, one".