2030405121 has 24 divisors (see below), whose sum is σ = 2972759400. Its totient is φ = 1335264000.

The previous prime is 2030405107. The next prime is 2030405129. The reversal of 2030405121 is 1215040302.

It can be written as a sum of positive squares in 4 ways, for example, as 973440000 + 1056965121 = 31200^2 + 32511^2 .

It is not a de Polignac number, because 2030405121 - 2⁹ = 2030404609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2030405094 and 2030405103.

It is not an unprimeable number, because it can be changed into a prime (2030405129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251455 + ... + 259403.

It is an arithmetic number, because the mean of its divisors is an integer number (123864975).

Almost surely, 2^2030405121 is an apocalyptic number.

It is an amenable number.

2030405121 is a deficient number, since it is larger than the sum of its proper divisors (942354279).

2030405121 is a wasteful number, since it uses less digits than its factorization.

2030405121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8337 (or 8334 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2030405121 is about 45060.0168774935. The cubic root of 2030405121 is about 1266.2736412752.

Adding to 2030405121 its reverse (1215040302), we get a palindrome (3245445423).

The spelling of 2030405121 in words is "two billion, thirty million, four hundred five thousand, one hundred twenty-one".