121104043 has 4 divisors (see below), whose sum is σ = 127477960. Its totient is φ = 114730128.

The previous prime is 121104031. The next prime is 121104079. The reversal of 121104043 is 340401121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340401121 = 3947 ⋅86243.

It is a cyclic number.

It is not a de Polignac number, because 121104043 - 2²¹ = 119006891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121104343) 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, 3186930 + ... + 3186967.

It is an arithmetic number, because the mean of its divisors is an integer number (31869490).

Almost surely, 2^121104043 is an apocalyptic number.

121104043 is a deficient number, since it is larger than the sum of its proper divisors (6373917).

121104043 is an equidigital number, since it uses as much as digits as its factorization.

121104043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373916.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121104043 is about 11004.7282110918. The cubic root of 121104043 is about 494.7504683882.

Adding to 121104043 its reverse (340401121), we get a palindrome (461505164).

The spelling of 121104043 in words is "one hundred twenty-one million, one hundred four thousand, forty-three".