12121043 has 8 divisors (see below), whose sum is σ = 13679280. Its totient is φ = 10638880.

The previous prime is 12121009. The next prime is 12121061. The reversal of 12121043 is 34012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12121043 - 2¹⁰ = 12120019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18680 + ... + 19317.

It is an arithmetic number, because the mean of its divisors is an integer number (1709910).

Almost surely, 2^12121043 is an apocalyptic number.

12121043 is a deficient number, since it is larger than the sum of its proper divisors (1558237).

12121043 is a wasteful number, since it uses less digits than its factorization.

12121043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38037.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12121043 is about 3481.5288308443. The cubic root of 12121043 is about 229.7100505078.

Adding to 12121043 its reverse (34012121), we get a palindrome (46133164).

The spelling of 12121043 in words is "twelve million, one hundred twenty-one thousand, forty-three".