11401121 has 8 divisors (see below), whose sum is σ = 12034080. Its totient is φ = 10771488.

The previous prime is 11401111. The next prime is 11401127. The reversal of 11401121 is 12110411.

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 11401121 - 2⁶ = 11401057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11401127) 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, 9845 + ... + 10941.

It is an arithmetic number, because the mean of its divisors is an integer number (1504260).

Almost surely, 2^11401121 is an apocalyptic number.

It is an amenable number.

11401121 is a deficient number, since it is larger than the sum of its proper divisors (632959).

11401121 is a wasteful number, since it uses less digits than its factorization.

11401121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 11401121 is about 3376.5546049190. The cubic root of 11401121 is about 225.0690882487.

Adding to 11401121 its reverse (12110411), we get a palindrome (23511532).

The spelling of 11401121 in words is "eleven million, four hundred one thousand, one hundred twenty-one".