123556505225683 has 2 divisors, whose sum is σ = 123556505225684. Its totient is φ = 123556505225682.

The previous prime is 123556505225627. The next prime is 123556505225767. The reversal of 123556505225683 is 386522505655321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123556505225683 is a prime.

It is not a weakly prime, because it can be changed into another prime (123556505225983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61778252612841 + 61778252612842.

It is an arithmetic number, because the mean of its divisors is an integer number (61778252612842).

Almost surely, 2^{123556505225683} is an apocalyptic number.

123556505225683 is a deficient number, since it is larger than the sum of its proper divisors (1).

123556505225683 is an equidigital number, since it uses as much as digits as its factorization.

123556505225683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800000, while the sum is 58.

The spelling of 123556505225683 in words is "one hundred twenty-three trillion, five hundred fifty-six billion, five hundred five million, two hundred twenty-five thousand, six hundred eighty-three".