4231091831 has 2 divisors, whose sum is σ = 4231091832. Its totient is φ = 4231091830.

The previous prime is 4231091803. The next prime is 4231091833. The reversal of 4231091831 is 1381901324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4231091831 is a prime.

It is a super-2 number, since 2×4231091831² = 35804276164709865122, which contains 22 as substring.

Together with 4231091833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4231091833) 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, 2115545915 + 2115545916.

It is an arithmetic number, because the mean of its divisors is an integer number (2115545916).

Almost surely, 2^4231091831 is an apocalyptic number.

4231091831 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231091831 is an equidigital number, since it uses as much as digits as its factorization.

4231091831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 4231091831 is about 65046.8433592284. The cubic root of 4231091831 is about 1617.4001675566.

The spelling of 4231091831 in words is "four billion, two hundred thirty-one million, ninety-one thousand, eight hundred thirty-one".