11251121 has 8 divisors (see below), whose sum is σ = 12882240. Its totient is φ = 9625968.

The previous prime is 11251103. The next prime is 11251129. The reversal of 11251121 is 12115211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11251121 - 2²² = 7056817 is a prime.

It is a super-3 number, since 3×11251121³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11251096 and 11251105.

It is not an unprimeable number, because it can be changed into a prime (11251129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3830 + ... + 6096.

It is an arithmetic number, because the mean of its divisors is an integer number (1610280).

Almost surely, 2^11251121 is an apocalyptic number.

It is an amenable number.

11251121 is a deficient number, since it is larger than the sum of its proper divisors (1631119).

11251121 is an equidigital number, since it uses as much as digits as its factorization.

11251121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983.

The product of its digits is 20, while the sum is 14.

The square root of 11251121 is about 3354.2690709005. The cubic root of 11251121 is about 224.0776795321.

Adding to 11251121 its reverse (12115211), we get a palindrome (23366332).

The spelling of 11251121 in words is "eleven million, two hundred fifty-one thousand, one hundred twenty-one".