121143404 has 12 divisors (see below), whose sum is σ = 212192904. Its totient is φ = 60516864.

The previous prime is 121143401. The next prime is 121143409. The reversal of 121143404 is 404341121.

It is a super-3 number, since 3×121143404³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121143401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8522 + ... + 17745.

It is an arithmetic number, because the mean of its divisors is an integer number (17682742).

Almost surely, 2^121143404 is an apocalyptic number.

It is an amenable number.

121143404 is a deficient number, since it is larger than the sum of its proper divisors (91049500).

121143404 is a wasteful number, since it uses less digits than its factorization.

121143404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27424 (or 27422 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 121143404 is about 11006.5164334589. The cubic root of 121143404 is about 494.8040635265.

Adding to 121143404 its reverse (404341121), we get a palindrome (525484525).

The spelling of 121143404 in words is "one hundred twenty-one million, one hundred forty-three thousand, four hundred four".