123053355243 has 48 divisors (see below), whose sum is σ = 220335548160. Its totient is φ = 64440245952.

The previous prime is 123053355221. The next prime is 123053355253. The reversal of 123053355243 is 342553350321.

123053355243 is a `hidden beast` number, since 1 + 2 + 30 + 5 + 33 + 552 + 43 = 666.

It is not a de Polignac number, because 123053355243 - 2¹³ = 123053347051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123053355198 and 123053355207.

It is not an unprimeable number, because it can be changed into a prime (123053355253) 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 47 ways as a sum of consecutive naturals, for example, 426621 + ... + 654302.

It is an arithmetic number, because the mean of its divisors is an integer number (4590323920).

Almost surely, 2^123053355243 is an apocalyptic number.

123053355243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123053355243 is a deficient number, since it is larger than the sum of its proper divisors (97282192917).

123053355243 is a wasteful number, since it uses less digits than its factorization.

123053355243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081088 (or 1081085 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

The spelling of 123053355243 in words is "one hundred twenty-three billion, fifty-three million, three hundred fifty-five thousand, two hundred forty-three".