11231137 has 4 divisors (see below), whose sum is σ = 11415316. Its totient is φ = 11046960.

The previous prime is 11231119. The next prime is 11231141. The reversal of 11231137 is 73113211.

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 314721 + 10916416 = 561^2 + 3304^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231137 - 2¹¹ = 11229089 is a prime.

It is a super-2 number, since 2×11231137² = 252276876625538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231537) 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, 91998 + ... + 92119.

It is an arithmetic number, because the mean of its divisors is an integer number (2853829).

Almost surely, 2^11231137 is an apocalyptic number.

It is an amenable number.

11231137 is a deficient number, since it is larger than the sum of its proper divisors (184179).

11231137 is an equidigital number, since it uses as much as digits as its factorization.

11231137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184178.

The product of its digits is 126, while the sum is 19.

The square root of 11231137 is about 3351.2888565446. The cubic root of 11231137 is about 223.9449335835.

Adding to 11231137 its reverse (73113211), we get a palindrome (84344348).

The spelling of 11231137 in words is "eleven million, two hundred thirty-one thousand, one hundred thirty-seven".