2012520331 has 4 divisors (see below), whose sum is σ = 2012788512. Its totient is φ = 2012252152.

The previous prime is 2012520329. The next prime is 2012520373. The reversal of 2012520331 is 1330252102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2012520331 - 2¹ = 2012520329 is a prime.

It is a super-2 number, since 2×2012520331² = 8100476165376699122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012520299 and 2012520308.

It is not an unprimeable number, because it can be changed into a prime (2012520311) 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, 122500 + ... + 137953.

It is an arithmetic number, because the mean of its divisors is an integer number (503197128).

Almost surely, 2^2012520331 is an apocalyptic number.

2012520331 is a deficient number, since it is larger than the sum of its proper divisors (268181).

2012520331 is an equidigital number, since it uses as much as digits as its factorization.

2012520331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268180.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2012520331 is about 44861.1227122104. The cubic root of 2012520331 is about 1262.5446874487.

Adding to 2012520331 its reverse (1330252102), we get a palindrome (3342772433).

The spelling of 2012520331 in words is "two billion, twelve million, five hundred twenty thousand, three hundred thirty-one".