121002043 has 4 divisors (see below), whose sum is σ = 123816088. Its totient is φ = 118188000.

The previous prime is 121002041. The next prime is 121002047. The reversal of 121002043 is 340200121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121002043 - 2¹ = 121002041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121002041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406958 + ... + 1407043.

It is an arithmetic number, because the mean of its divisors is an integer number (30954022).

Almost surely, 2^121002043 is an apocalyptic number.

121002043 is a deficient number, since it is larger than the sum of its proper divisors (2814045).

121002043 is an equidigital number, since it uses as much as digits as its factorization.

121002043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814044.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 121002043 is about 11000.0928632444. The cubic root of 121002043 is about 494.6115280163.

Adding to 121002043 its reverse (340200121), we get a palindrome (461202164).

The spelling of 121002043 in words is "one hundred twenty-one million, two thousand, forty-three".