103251243653 has 2 divisors, whose sum is σ = 103251243654. Its totient is φ = 103251243652.

The previous prime is 103251243643. The next prime is 103251243701. The reversal of 103251243653 is 356342152301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55846197124 + 47405046529 = 236318^2 + 217727^2 .

It is a cyclic number.

It is not a de Polignac number, because 103251243653 - 2⁸ = 103251243397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103251243643) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51625621826 + 51625621827.

It is an arithmetic number, because the mean of its divisors is an integer number (51625621827).

Almost surely, 2^103251243653 is an apocalyptic number.

It is an amenable number.

103251243653 is a deficient number, since it is larger than the sum of its proper divisors (1).

103251243653 is an equidigital number, since it uses as much as digits as its factorization.

103251243653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 103251243653 its reverse (356342152301), we get a palindrome (459593395954).

The spelling of 103251243653 in words is "one hundred three billion, two hundred fifty-one million, two hundred forty-three thousand, six hundred fifty-three".