126320503 has 2 divisors, whose sum is σ = 126320504. Its totient is φ = 126320502.

The previous prime is 126320429. The next prime is 126320507. The reversal of 126320503 is 305023621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126320503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126320507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63160251 + 63160252.

It is an arithmetic number, because the mean of its divisors is an integer number (63160252).

Almost surely, 2^126320503 is an apocalyptic number.

126320503 is a deficient number, since it is larger than the sum of its proper divisors (1).

126320503 is an equidigital number, since it uses as much as digits as its factorization.

126320503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 126320503 is about 11239.2394315630. The cubic root of 126320503 is about 501.7545068767.

The spelling of 126320503 in words is "one hundred twenty-six million, three hundred twenty thousand, five hundred three".