121143112 has 8 divisors (see below), whose sum is σ = 227143350. Its totient is φ = 60571552.

The previous prime is 121143101. The next prime is 121143149. The reversal of 121143112 is 211341121.

It can be written as a sum of positive squares in only one way, i.e., 115218756 + 5924356 = 10734^2 + 2434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×121143112³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7571437 + ... + 7571452.

Almost surely, 2^121143112 is an apocalyptic number.

It is an amenable number.

121143112 is a deficient number, since it is larger than the sum of its proper divisors (106000238).

121143112 is a wasteful number, since it uses less digits than its factorization.

121143112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15142895 (or 15142891 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 121143112 is about 11006.5031685817. The cubic root of 121143112 is about 494.8036659731.

Adding to 121143112 its reverse (211341121), we get a palindrome (332484233).

The spelling of 121143112 in words is "one hundred twenty-one million, one hundred forty-three thousand, one hundred twelve".