123235356550 has 24 divisors (see below), whose sum is σ = 230890898376. Its totient is φ = 48934328640.

The previous prime is 123235356547. The next prime is 123235356551. The reversal of 123235356550 is 55653532321.

123235356550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123235356551) 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 11 ways as a sum of consecutive naturals, for example, 8988432 + ... + 9002131.

It is an arithmetic number, because the mean of its divisors is an integer number (9620454099).

Almost surely, 2^123235356550 is an apocalyptic number.

123235356550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123235356550 is a deficient number, since it is larger than the sum of its proper divisors (107655541826).

123235356550 is a wasteful number, since it uses less digits than its factorization.

123235356550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17990712 (or 17990707 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 40.

Adding to 123235356550 its reverse (55653532321), we get a palindrome (178888888871).

The spelling of 123235356550 in words is "one hundred twenty-three billion, two hundred thirty-five million, three hundred fifty-six thousand, five hundred fifty".