2520131211 has 60 divisors (see below), whose sum is σ = 4164301152. Its totient is φ = 1517465664.

The previous prime is 2520131203. The next prime is 2520131213. The reversal of 2520131211 is 1121310252.

2520131211 is a `hidden beast` number, since 2 + 520 + 131 + 2 + 11 = 666.

It is not a de Polignac number, because 2520131211 - 2³ = 2520131203 is a prime.

It is a super-2 number, since 2×2520131211² = 12702122641312653042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520131213) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 641425 + ... + 645341.

Almost surely, 2^2520131211 is an apocalyptic number.

2520131211 is a deficient number, since it is larger than the sum of its proper divisors (1644169941).

2520131211 is a wasteful number, since it uses less digits than its factorization.

2520131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002 (or 3980 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2520131211 is about 50200.9084678754. The cubic root of 2520131211 is about 1360.8420410805.

Adding to 2520131211 its reverse (1121310252), we get a palindrome (3641441463).

The spelling of 2520131211 in words is "two billion, five hundred twenty million, one hundred thirty-one thousand, two hundred eleven".