10420352491 has 2 divisors, whose sum is σ = 10420352492. Its totient is φ = 10420352490.

The previous prime is 10420352357. The next prime is 10420352549. The reversal of 10420352491 is 19425302401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10420352491 - 2¹⁷ = 10420221419 is a prime.

It is not a weakly prime, because it can be changed into another prime (10420353491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210176245 + 5210176246.

It is an arithmetic number, because the mean of its divisors is an integer number (5210176246).

Almost surely, 2^10420352491 is an apocalyptic number.

10420352491 is a deficient number, since it is larger than the sum of its proper divisors (1).

10420352491 is an equidigital number, since it uses as much as digits as its factorization.

10420352491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 10420352491 its reverse (19425302401), we get a palindrome (29845654892).

The spelling of 10420352491 in words is "ten billion, four hundred twenty million, three hundred fifty-two thousand, four hundred ninety-one".