120666503 has 2 divisors, whose sum is σ = 120666504. Its totient is φ = 120666502.

The previous prime is 120666499. The next prime is 120666529. The reversal of 120666503 is 305666021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120666503 - 2² = 120666499 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120666703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60333251 + 60333252.

It is an arithmetic number, because the mean of its divisors is an integer number (60333252).

Almost surely, 2^120666503 is an apocalyptic number.

120666503 is a deficient number, since it is larger than the sum of its proper divisors (1).

120666503 is an equidigital number, since it uses as much as digits as its factorization.

120666503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 120666503 is about 10984.8305858579. The cubic root of 120666503 is about 494.1539170274.

The spelling of 120666503 in words is "one hundred twenty million, six hundred sixty-six thousand, five hundred three".