11451121 has 8 divisors (see below), whose sum is σ = 12895488. Its totient is φ = 10074000.

The previous prime is 11451119. The next prime is 11451131. The reversal of 11451121 is 12115411.

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 11451121 - 2¹ = 11451119 is a prime.

It is a super-2 number, since 2×11451121² = 262256344313282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11451095 and 11451104.

It is not an unprimeable number, because it can be changed into a prime (11451101) 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, 16450 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (1611936).

Almost surely, 2^11451121 is an apocalyptic number.

11451121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11451121 is a deficient number, since it is larger than the sum of its proper divisors (1444367).

11451121 is a wasteful number, since it uses less digits than its factorization.

11451121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33623.

The product of its digits is 40, while the sum is 16.

The square root of 11451121 is about 3383.9505020021. The cubic root of 11451121 is about 225.3976244682.

Adding to 11451121 its reverse (12115411), we get a palindrome (23566532).

The spelling of 11451121 in words is "eleven million, four hundred fifty-one thousand, one hundred twenty-one".