121010043 has 24 divisors (see below), whose sum is σ = 202687744. Its totient is φ = 62861040.

The previous prime is 121010039. The next prime is 121010053. The reversal of 121010043 is 340010121.

It is a happy number.

It is not a de Polignac number, because 121010043 - 2² = 121010039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121010033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21271 + ... + 26352.

Almost surely, 2^121010043 is an apocalyptic number.

121010043 is a deficient number, since it is larger than the sum of its proper divisors (81677701).

121010043 is a wasteful number, since it uses less digits than its factorization.

121010043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47655 (or 47644 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 121010043 is about 11000.4564905280. The cubic root of 121010043 is about 494.6224281216.

Adding to 121010043 its reverse (340010121), we get a palindrome (461020164).

The spelling of 121010043 in words is "one hundred twenty-one million, ten thousand, forty-three".