123355803 has 4 divisors (see below), whose sum is σ = 164474408. Its totient is φ = 82237200.

The previous prime is 123355801. The next prime is 123355811. The reversal of 123355803 is 308553321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123355803 - 2¹ = 123355801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123355801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20559298 + ... + 20559303.

It is an arithmetic number, because the mean of its divisors is an integer number (41118602).

Almost surely, 2^123355803 is an apocalyptic number.

123355803 is a deficient number, since it is larger than the sum of its proper divisors (41118605).

123355803 is an equidigital number, since it uses as much as digits as its factorization.

123355803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41118604.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 123355803 is about 11106.5657608461. The cubic root of 123355803 is about 497.7980544399.

The spelling of 123355803 in words is "one hundred twenty-three million, three hundred fifty-five thousand, eight hundred three".