10103320861 has 2 divisors, whose sum is σ = 10103320862. Its totient is φ = 10103320860.

The previous prime is 10103320849. The next prime is 10103320867. The reversal of 10103320861 is 16802330101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9100015236 + 1003305625 = 95394^2 + 31675^2 .

It is a cyclic number.

It is not a de Polignac number, because 10103320861 - 2¹⁵ = 10103288093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10103320867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051660430 + 5051660431.

It is an arithmetic number, because the mean of its divisors is an integer number (5051660431).

Almost surely, 2^10103320861 is an apocalyptic number.

It is an amenable number.

10103320861 is a deficient number, since it is larger than the sum of its proper divisors (1).

10103320861 is an equidigital number, since it uses as much as digits as its factorization.

10103320861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 10103320861 its reverse (16802330101), we get a palindrome (26905650962).

The spelling of 10103320861 in words is "ten billion, one hundred three million, three hundred twenty thousand, eight hundred sixty-one".