11131807 has 2 divisors, whose sum is σ = 11131808. Its totient is φ = 11131806.

The previous prime is 11131801. The next prime is 11131819. The reversal of 11131807 is 70813111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11131807 - 2¹¹ = 11129759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11131801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565903 + 5565904.

It is an arithmetic number, because the mean of its divisors is an integer number (5565904).

Almost surely, 2^11131807 is an apocalyptic number.

11131807 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131807 is an equidigital number, since it uses as much as digits as its factorization.

11131807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 11131807 is about 3336.4362724320. The cubic root of 11131807 is about 223.2827758631.

Adding to 11131807 its reverse (70813111), we get a palindrome (81944918).

The spelling of 11131807 in words is "eleven million, one hundred thirty-one thousand, eight hundred seven".