121143040443 has 12 divisors (see below), whose sum is σ = 184194096840. Its totient is φ = 76511393856.

The previous prime is 121143040433. The next prime is 121143040489. The reversal of 121143040443 is 344040341121.

121143040443 is a `hidden beast` number, since 1 + 211 + 4 + 3 + 0 + 4 + 0 + 443 = 666.

It is not a de Polignac number, because 121143040443 - 2⁵ = 121143040411 is a prime.

It is a super-3 number, since 3×121143040443³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121143040433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354219246 + ... + 354219587.

It is an arithmetic number, because the mean of its divisors is an integer number (15349508070).

Almost surely, 2^121143040443 is an apocalyptic number.

121143040443 is a deficient number, since it is larger than the sum of its proper divisors (63051056397).

121143040443 is a wasteful number, since it uses less digits than its factorization.

121143040443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708438858 (or 708438855 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 121143040443 its reverse (344040341121), we get a palindrome (465183381564).

The spelling of 121143040443 in words is "one hundred twenty-one billion, one hundred forty-three million, forty thousand, four hundred forty-three".