2040545121 has 4 divisors (see below), whose sum is σ = 2720726832. Its totient is φ = 1360363412.

The previous prime is 2040545107. The next prime is 2040545131. The reversal of 2040545121 is 1215450402.

2040545121 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2040545121 - 2⁶ = 2040545057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2040545091 and 2040545100.

It is not an unprimeable number, because it can be changed into a prime (2040545131) 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, 340090851 + ... + 340090856.

It is an arithmetic number, because the mean of its divisors is an integer number (680181708).

Almost surely, 2^2040545121 is an apocalyptic number.

It is an amenable number.

2040545121 is a deficient number, since it is larger than the sum of its proper divisors (680181711).

2040545121 is an equidigital number, since it uses as much as digits as its factorization.

2040545121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680181710.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2040545121 is about 45172.3933503639. The cubic root of 2040545121 is about 1268.3780980035.

Adding to 2040545121 its reverse (1215450402), we get a palindrome (3255995523).

The spelling of 2040545121 in words is "two billion, forty million, five hundred forty-five thousand, one hundred twenty-one".