123203036 has 12 divisors (see below), whose sum is σ = 235205880. Its totient is φ = 56001360.

The previous prime is 123203023. The next prime is 123203039. The reversal of 123203036 is 630302321.

It is a junction number, because it is equal to n+sod(n) for n = 123202999 and 123203017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399991 + ... + 1400078.

It is an arithmetic number, because the mean of its divisors is an integer number (19600490).

Almost surely, 2^123203036 is an apocalyptic number.

It is an amenable number.

123203036 is a deficient number, since it is larger than the sum of its proper divisors (112002844).

123203036 is a wasteful number, since it uses less digits than its factorization.

123203036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800084 (or 2800082 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 123203036 is about 11099.6863018736. The cubic root of 123203036 is about 497.5924742454.

Adding to 123203036 its reverse (630302321), we get a palindrome (753505357).

The spelling of 123203036 in words is "one hundred twenty-three million, two hundred three thousand, thirty-six".