123456803 has 2 divisors, whose sum is σ = 123456804. Its totient is φ = 123456802.

The previous prime is 123456791. The next prime is 123456811. The reversal of 123456803 is 308654321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123456803 - 2¹⁰ = 123455779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123456803.

It is not a weakly prime, because it can be changed into another prime (123452803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61728401 + 61728402.

It is an arithmetic number, because the mean of its divisors is an integer number (61728402).

Almost surely, 2^123456803 is an apocalyptic number.

123456803 is a deficient number, since it is larger than the sum of its proper divisors (1).

123456803 is an equidigital number, since it uses as much as digits as its factorization.

123456803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 123456803 is about 11111.1116905555. Note that the first 3 decimals coincide. The cubic root of 123456803 is about 497.9338780401.

The spelling of 123456803 in words is "one hundred twenty-three million, four hundred fifty-six thousand, eight hundred three".