123054051243 has 64 divisors (see below), whose sum is σ = 177952287744. Its totient is φ = 75440640000.

The previous prime is 123054051223. The next prime is 123054051257. The reversal of 123054051243 is 342150450321.

It is not a de Polignac number, because 123054051243 - 2⁹ = 123054050731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123054051243.

It is not an unprimeable number, because it can be changed into a prime (123054051223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68859796 + ... + 68861582.

It is an arithmetic number, because the mean of its divisors is an integer number (2780504496).

Almost surely, 2^123054051243 is an apocalyptic number.

123054051243 is a deficient number, since it is larger than the sum of its proper divisors (54898236501).

123054051243 is a wasteful number, since it uses less digits than its factorization.

123054051243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 123054051243 in words is "one hundred twenty-three billion, fifty-four million, fifty-one thousand, two hundred forty-three".