11031872 has 14 divisors (see below), whose sum is σ = 21891498. Its totient is φ = 5515904.

The previous prime is 11031871. The next prime is 11031893. The reversal of 11031872 is 27813011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10601536 + 430336 = 3256^2 + 656^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86123 + ... + 86250.

Almost surely, 2^11031872 is an apocalyptic number.

It is an amenable number.

11031872 is a deficient number, since it is larger than the sum of its proper divisors (10859626).

11031872 is an equidigital number, since it uses as much as digits as its factorization.

11031872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172385 (or 172375 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11031872 is about 3321.4261996919. The cubic root of 11031872 is about 222.6125979771.

Adding to 11031872 its reverse (27813011), we get a palindrome (38844883).

The spelling of 11031872 in words is "eleven million, thirty-one thousand, eight hundred seventy-two".