121181043 has 16 divisors (see below), whose sum is σ = 169295616. Its totient is φ = 76956000.

The previous prime is 121181029. The next prime is 121181051. The reversal of 121181043 is 340181121.

It is a happy number.

It is not a de Polignac number, because 121181043 - 2¹² = 121176947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121181063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13821 + ... + 20817.

It is an arithmetic number, because the mean of its divisors is an integer number (10580976).

Almost surely, 2^121181043 is an apocalyptic number.

121181043 is a deficient number, since it is larger than the sum of its proper divisors (48114573).

121181043 is a wasteful number, since it uses less digits than its factorization.

121181043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 121181043 is about 11008.2261513833. The cubic root of 121181043 is about 494.8553030797.

The spelling of 121181043 in words is "one hundred twenty-one million, one hundred eighty-one thousand, forty-three".