11131200001 has 4 divisors (see below), whose sum is σ = 11241410004. Its totient is φ = 11020990000.

The previous prime is 11131199999. The next prime is 11131200011. The reversal of 11131200001 is 10000213111.

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 9124070400 + 2007129601 = 95520^2 + 44801^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131200001 - 2¹ = 11131199999 is a prime.

It is a super-2 number, since 2×11131200001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131200011) 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, 55104850 + ... + 55105051.

It is an arithmetic number, because the mean of its divisors is an integer number (2810352501).

Almost surely, 2^11131200001 is an apocalyptic number.

It is an amenable number.

11131200001 is a deficient number, since it is larger than the sum of its proper divisors (110210003).

11131200001 is a wasteful number, since it uses less digits than its factorization.

11131200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110210002.

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

Adding to 11131200001 its reverse (10000213111), we get a palindrome (21131413112).

The spelling of 11131200001 in words is "eleven billion, one hundred thirty-one million, two hundred thousand, one".