2520338121 has 12 divisors (see below), whose sum is σ = 4160558272. Its totient is φ = 1440193176.

The previous prime is 2520338083. The next prime is 2520338123. The reversal of 2520338121 is 1218330252.

2520338121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2520338121 - 2⁶ = 2520338057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520338123) 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, 20002621 + ... + 20002746.

Almost surely, 2^2520338121 is an apocalyptic number.

2520338121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2520338121 is a deficient number, since it is larger than the sum of its proper divisors (1640220151).

2520338121 is a wasteful number, since it uses less digits than its factorization.

2520338121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40005380 (or 40005377 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2520338121 is about 50202.9692448564. The cubic root of 2520338121 is about 1360.8792830728.

Adding to 2520338121 its reverse (1218330252), we get a palindrome (3738668373).

The spelling of 2520338121 in words is "two billion, five hundred twenty million, three hundred thirty-eight thousand, one hundred twenty-one".