11231660137 has 4 divisors (see below), whose sum is σ = 11232468100. Its totient is φ = 11230852176.

The previous prime is 11231660131. The next prime is 11231660149. The reversal of 11231660137 is 73106613211.

11231660137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10068918336 + 1162741801 = 100344^2 + 34099^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231660137 - 2³ = 11231660129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11231660099 and 11231660108.

It is not an unprimeable number, because it can be changed into a prime (11231660131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382758 + ... + 411055.

It is an arithmetic number, because the mean of its divisors is an integer number (2808117025).

Almost surely, 2^11231660137 is an apocalyptic number.

It is an amenable number.

11231660137 is a deficient number, since it is larger than the sum of its proper divisors (807963).

11231660137 is an equidigital number, since it uses as much as digits as its factorization.

11231660137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807962.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 11231660137 in words is "eleven billion, two hundred thirty-one million, six hundred sixty thousand, one hundred thirty-seven".