121143356 has 24 divisors (see below), whose sum is σ = 217689360. Its totient is φ = 58953600.

The previous prime is 121143349. The next prime is 121143361. The reversal of 121143356 is 653341121.

It is a super-3 number, since 3×121143356³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 112790 + ... + 113858.

It is an arithmetic number, because the mean of its divisors is an integer number (9070390).

Almost surely, 2^121143356 is an apocalyptic number.

It is an amenable number.

121143356 is a deficient number, since it is larger than the sum of its proper divisors (96546004).

121143356 is a wasteful number, since it uses less digits than its factorization.

121143356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805 (or 1803 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 121143356 is about 11006.5142529322. The cubic root of 121143356 is about 494.8039981753.

Adding to 121143356 its reverse (653341121), we get a palindrome (774484477).

The spelling of 121143356 in words is "one hundred twenty-one million, one hundred forty-three thousand, three hundred fifty-six".