2081158031 has 2 divisors, whose sum is σ = 2081158032. Its totient is φ = 2081158030.

The previous prime is 2081157997. The next prime is 2081158033. The reversal of 2081158031 is 1308511802.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081158031 is a prime.

It is a super-2 number, since 2×2081158031² = 8662437499991593922, which contains 22 as substring.

Together with 2081158033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2081157985 and 2081158003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081158033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040579015 + 1040579016.

It is an arithmetic number, because the mean of its divisors is an integer number (1040579016).

Almost surely, 2^2081158031 is an apocalyptic number.

2081158031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081158031 is an equidigital number, since it uses as much as digits as its factorization.

2081158031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 2081158031 is about 45619.7109920701. The cubic root of 2081158031 is about 1276.7377112655.

Adding to 2081158031 its reverse (1308511802), we get a palindrome (3389669833).

The spelling of 2081158031 in words is "two billion, eighty-one million, one hundred fifty-eight thousand, thirty-one".