2112020531 has 2 divisors, whose sum is σ = 2112020532. Its totient is φ = 2112020530.

The previous prime is 2112020527. The next prime is 2112020539. The reversal of 2112020531 is 1350202112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112020531 - 2² = 2112020527 is a prime.

It is a super-2 number, since 2×2112020531² = 8921261446731043922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112020539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056010265 + 1056010266.

It is an arithmetic number, because the mean of its divisors is an integer number (1056010266).

Almost surely, 2^2112020531 is an apocalyptic number.

2112020531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112020531 is an equidigital number, since it uses as much as digits as its factorization.

2112020531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2112020531 is about 45956.7245460335. The cubic root of 2112020531 is about 1283.0178894272.

Adding to 2112020531 its reverse (1350202112), we get a palindrome (3462222643).

The spelling of 2112020531 in words is "two billion, one hundred twelve million, twenty thousand, five hundred thirty-one".