123778303 has 8 divisors (see below), whose sum is σ = 138324816. Its totient is φ = 109780800.

The previous prime is 123778301. The next prime is 123778313. The reversal of 123778303 is 303877321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123778303 - 2¹ = 123778301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123778301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136776 + ... + 137677.

It is an arithmetic number, because the mean of its divisors is an integer number (17290602).

Almost surely, 2^123778303 is an apocalyptic number.

123778303 is a deficient number, since it is larger than the sum of its proper divisors (14546513).

123778303 is a wasteful number, since it uses less digits than its factorization.

123778303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274505.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 123778303 is about 11125.5697831617. The cubic root of 123778303 is about 498.3657348412.

The spelling of 123778303 in words is "one hundred twenty-three million, seven hundred seventy-eight thousand, three hundred three".