121055043 has 4 divisors (see below), whose sum is σ = 161406728. Its totient is φ = 80703360.

The previous prime is 121055029. The next prime is 121055057. The reversal of 121055043 is 340550121.

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

It is an interprime number because it is at equal distance from previous prime (121055029) and next prime (121055057).

It is not a de Polignac number, because 121055043 - 2⁴ = 121055027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121055063) 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, 20175838 + ... + 20175843.

It is an arithmetic number, because the mean of its divisors is an integer number (40351682).

Almost surely, 2^121055043 is an apocalyptic number.

121055043 is a deficient number, since it is larger than the sum of its proper divisors (40351685).

121055043 is an equidigital number, since it uses as much as digits as its factorization.

121055043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40351684.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 121055043 is about 11002.5016700749. The cubic root of 121055043 is about 494.6837322642.

The spelling of 121055043 in words is "one hundred twenty-one million, fifty-five thousand, forty-three".