123300550 has 12 divisors (see below), whose sum is σ = 229339116. Its totient is φ = 49320200.

The previous prime is 123300533. The next prime is 123300563. The reversal of 123300550 is 55003321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1232956 + ... + 1233055.

It is an arithmetic number, because the mean of its divisors is an integer number (19111593).

Almost surely, 2^123300550 is an apocalyptic number.

123300550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123300550 is a deficient number, since it is larger than the sum of its proper divisors (106038566).

123300550 is a wasteful number, since it uses less digits than its factorization.

123300550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466023 (or 2466018 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 123300550 is about 11104.0780796967. The cubic root of 123300550 is about 497.7237194866.

Adding to 123300550 its reverse (55003321), we get a palindrome (178303871).

It can be divided in two parts, 1 and 23300550, that added together give a triangular number (23300551 = T₆₈₂₆).

The spelling of 123300550 in words is "one hundred twenty-three million, three hundred thousand, five hundred fifty".