102403120397 has 2 divisors, whose sum is σ = 102403120398. Its totient is φ = 102403120396.

The previous prime is 102403120357. The next prime is 102403120427. The reversal of 102403120397 is 793021304201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98527559881 + 3875560516 = 313891^2 + 62254^2 .

It is a cyclic number.

It is not a de Polignac number, because 102403120397 - 2¹⁶ = 102403054861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102403120307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51201560198 + 51201560199.

It is an arithmetic number, because the mean of its divisors is an integer number (51201560199).

Almost surely, 2^102403120397 is an apocalyptic number.

It is an amenable number.

102403120397 is a deficient number, since it is larger than the sum of its proper divisors (1).

102403120397 is an equidigital number, since it uses as much as digits as its factorization.

102403120397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 102403120397 its reverse (793021304201), we get a palindrome (895424424598).

The spelling of 102403120397 in words is "one hundred two billion, four hundred three million, one hundred twenty thousand, three hundred ninety-seven".