10012391 has 2 divisors, whose sum is σ = 10012392. Its totient is φ = 10012390.

The previous prime is 10012369. The next prime is 10012393. The reversal of 10012391 is 19321001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10012391 - 2¹⁰ = 10011367 is a prime.

Together with 10012393, 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 (10012393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006195 + 5006196.

It is an arithmetic number, because the mean of its divisors is an integer number (5006196).

Almost surely, 2^10012391 is an apocalyptic number.

10012391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012391 is an equidigital number, since it uses as much as digits as its factorization.

10012391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 10012391 is about 3164.2362427606. The cubic root of 10012391 is about 215.5324176087.

Adding to 10012391 its reverse (19321001), we get a palindrome (29333392).

The spelling of 10012391 in words is "ten million, twelve thousand, three hundred ninety-one".