9941210831 has 2 divisors, whose sum is σ = 9941210832. Its totient is φ = 9941210830.

The previous prime is 9941210813. The next prime is 9941210833. The reversal of 9941210831 is 1380121499.

9941210831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (9941210813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (1380121499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9941210831 - 2¹⁸ = 9940948687 is a prime.

It is a super-2 number, since 2×9941210831² (a number of 21 digits) contains 22 as substring.

Together with 9941210833, 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 (9941210833) 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, 4970605415 + 4970605416.

It is an arithmetic number, because the mean of its divisors is an integer number (4970605416).

Almost surely, 2^9941210831 is an apocalyptic number.

9941210831 is a deficient number, since it is larger than the sum of its proper divisors (1).

9941210831 is an equidigital number, since it uses as much as digits as its factorization.

9941210831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 9941210831 is about 99705.6208596085. The cubic root of 9941210831 is about 2150.2044753067.

The spelling of 9941210831 in words is "nine billion, nine hundred forty-one million, two hundred ten thousand, eight hundred thirty-one".