10240213391 has 2 divisors, whose sum is σ = 10240213392. Its totient is φ = 10240213390.

The previous prime is 10240213339. The next prime is 10240213393. The reversal of 10240213391 is 19331204201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10240213391 - 2¹⁸ = 10239951247 is a prime.

Together with 10240213393, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10240213391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10240213393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5120106695 + 5120106696.

It is an arithmetic number, because the mean of its divisors is an integer number (5120106696).

Almost surely, 2^10240213391 is an apocalyptic number.

10240213391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10240213391 is an equidigital number, since it uses as much as digits as its factorization.

10240213391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 10240213391 its reverse (19331204201), we get a palindrome (29571417592).

The spelling of 10240213391 in words is "ten billion, two hundred forty million, two hundred thirteen thousand, three hundred ninety-one".