121443002 has 12 divisors (see below), whose sum is σ = 193511310. Its totient is φ = 57149376.

The previous prime is 121443001. The next prime is 121443031. The reversal of 121443002 is 200344121.

It can be written as a sum of positive squares in 3 ways, for example, as 119006281 + 2436721 = 10909^2 + 1561^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (121443001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104477 + ... + 105632.

Almost surely, 2^121443002 is an apocalyptic number.

121443002 is a deficient number, since it is larger than the sum of its proper divisors (72068308).

121443002 is a wasteful number, since it uses less digits than its factorization.

121443002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210145 (or 210128 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 121443002 is about 11020.1180574438. The cubic root of 121443002 is about 495.2116253231.

Adding to 121443002 its reverse (200344121), we get a palindrome (321787123).

The spelling of 121443002 in words is "one hundred twenty-one million, four hundred forty-three thousand, two".