121443356 has 12 divisors (see below), whose sum is σ = 212603160. Its totient is φ = 60699600.

The previous prime is 121443341. The next prime is 121443389. The reversal of 121443356 is 653344121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17831 + ... + 23681.

It is an arithmetic number, because the mean of its divisors is an integer number (17716930).

Almost surely, 2^121443356 is an apocalyptic number.

It is an amenable number.

121443356 is a deficient number, since it is larger than the sum of its proper divisors (91159804).

121443356 is a wasteful number, since it uses less digits than its factorization.

121443356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11044 (or 11042 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 121443356 is about 11020.1341189661. The cubic root of 121443356 is about 495.2121064946.

Adding to 121443356 its reverse (653344121), we get a palindrome (774787477).

The spelling of 121443356 in words is "one hundred twenty-one million, four hundred forty-three thousand, three hundred fifty-six".