2043121131 has 8 divisors (see below), whose sum is σ = 3026846160. Its totient is φ = 1362080736.

The previous prime is 2043121127. The next prime is 2043121139. The reversal of 2043121131 is 1311213402.

2043121131 is a `hidden beast` number, since 20 + 431 + 211 + 3 + 1 = 666.

It is not a de Polignac number, because 2043121131 - 2² = 2043121127 is a prime.

It is a super-3 number, since 3×2043121131³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2043121139) 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, 37835550 + ... + 37835603.

It is an arithmetic number, because the mean of its divisors is an integer number (378355770).

Almost surely, 2^2043121131 is an apocalyptic number.

2043121131 is a deficient number, since it is larger than the sum of its proper divisors (983725029).

2043121131 is an equidigital number, since it uses as much as digits as its factorization.

2043121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75671162 (or 75671156 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2043121131 is about 45200.8974579045. The cubic root of 2043121131 is about 1268.9116124188.

Adding to 2043121131 its reverse (1311213402), we get a palindrome (3354334533).

The spelling of 2043121131 in words is "two billion, forty-three million, one hundred twenty-one thousand, one hundred thirty-one".