2011031131 has 2 divisors, whose sum is σ = 2011031132. Its totient is φ = 2011031130.

The previous prime is 2011031123. The next prime is 2011031149. The reversal of 2011031131 is 1311301102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011031131 - 2³ = 2011031123 is a prime.

It is a super-2 number, since 2×2011031131² = 8088492419702278322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2011031161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005515565 + 1005515566.

It is an arithmetic number, because the mean of its divisors is an integer number (1005515566).

Almost surely, 2^2011031131 is an apocalyptic number.

2011031131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011031131 is an equidigital number, since it uses as much as digits as its factorization.

2011031131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2011031131 is about 44844.5217501536. The cubic root of 2011031131 is about 1262.2331965173.

Adding to 2011031131 its reverse (1311301102), we get a palindrome (3322332233).

The spelling of 2011031131 in words is "two billion, eleven million, thirty-one thousand, one hundred thirty-one".