4231028720837 has 2 divisors, whose sum is σ = 4231028720838. Its totient is φ = 4231028720836.

The previous prime is 4231028720801. The next prime is 4231028720839. The reversal of 4231028720837 is 7380278201324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3350342195236 + 880686525601 = 1830394^2 + 938449^2 .

It is a cyclic number.

It is not a de Polignac number, because 4231028720837 - 2²⁶ = 4230961611973 is a prime.

Together with 4231028720839, 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 = 4231028720791 and 4231028720800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4231028720839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115514360418 + 2115514360419.

It is an arithmetic number, because the mean of its divisors is an integer number (2115514360419).

Almost surely, 2^{4231028720837} is an apocalyptic number.

It is an amenable number.

4231028720837 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231028720837 is an equidigital number, since it uses as much as digits as its factorization.

4231028720837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 4231028720837 in words is "four trillion, two hundred thirty-one billion, twenty-eight million, seven hundred twenty thousand, eight hundred thirty-seven".