121136043 has 8 divisors (see below), whose sum is σ = 184588288. Its totient is φ = 69220584.

The previous prime is 121135997. The next prime is 121136047. The reversal of 121136043 is 340631121.

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

It is not a de Polignac number, because 121136043 - 2¹⁰ = 121135019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5768383 = 121136043 / (1 + 2 + 1 + 1 + 3 + 6 + 0 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121136047) 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, 2884171 + ... + 2884212.

It is an arithmetic number, because the mean of its divisors is an integer number (23073536).

Almost surely, 2^121136043 is an apocalyptic number.

121136043 is a deficient number, since it is larger than the sum of its proper divisors (63452245).

121136043 is an equidigital number, since it uses as much as digits as its factorization.

121136043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768393.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 121136043 is about 11006.1820355653. The cubic root of 121136043 is about 494.7940414470.

Adding to 121136043 its reverse (340631121), we get a palindrome (461767164).

The spelling of 121136043 in words is "one hundred twenty-one million, one hundred thirty-six thousand, forty-three".