123536536143 has 16 divisors (see below), whose sum is σ = 173982944256. Its totient is φ = 77847477120.

The previous prime is 123536536111. The next prime is 123536536159. The reversal of 123536536143 is 341635635321.

It is not a de Polignac number, because 123536536143 - 2⁵ = 123536536111 is a prime.

It is a super-2 number, since 2×123536536143² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123536536095 and 123536536104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123536536103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15441930 + ... + 15449927.

It is an arithmetic number, because the mean of its divisors is an integer number (10873934016).

Almost surely, 2^123536536143 is an apocalyptic number.

123536536143 is a deficient number, since it is larger than the sum of its proper divisors (50446408113).

123536536143 is a wasteful number, since it uses less digits than its factorization.

123536536143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30891934.

The product of its digits is 583200, while the sum is 42.

The spelling of 123536536143 in words is "one hundred twenty-three billion, five hundred thirty-six million, five hundred thirty-six thousand, one hundred forty-three".