10520245091 has 2 divisors, whose sum is σ = 10520245092. Its totient is φ = 10520245090.

The previous prime is 10520245079. The next prime is 10520245121. The reversal of 10520245091 is 19054202501.

10520245091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10520245091 is a prime.

It is a super-2 number, since 2×10520245091² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10520241091) 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, 5260122545 + 5260122546.

It is an arithmetic number, because the mean of its divisors is an integer number (5260122546).

Almost surely, 2^10520245091 is an apocalyptic number.

10520245091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10520245091 is an equidigital number, since it uses as much as digits as its factorization.

10520245091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 10520245091 its reverse (19054202501), we get a palindrome (29574447592).

The spelling of 10520245091 in words is "ten billion, five hundred twenty million, two hundred forty-five thousand, ninety-one".