126510497803 has 2 divisors, whose sum is σ = 126510497804. Its totient is φ = 126510497802.

The previous prime is 126510497783. The next prime is 126510497819. The reversal of 126510497803 is 308794015621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126510497803 - 2⁹ = 126510497291 is a prime.

It is not a weakly prime, because it can be changed into another prime (126510897803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63255248901 + 63255248902.

It is an arithmetic number, because the mean of its divisors is an integer number (63255248902).

It is a 1-persistent number, because it is pandigital, but 2⋅126510497803 = 253020995606 is not.

Almost surely, 2^126510497803 is an apocalyptic number.

126510497803 is a deficient number, since it is larger than the sum of its proper divisors (1).

126510497803 is an equidigital number, since it uses as much as digits as its factorization.

126510497803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 126510497803 in words is "one hundred twenty-six billion, five hundred ten million, four hundred ninety-seven thousand, eight hundred three".