123556301044206 has 8 divisors (see below), whose sum is σ = 247112602088424. Its totient is φ = 41185433681400.

The previous prime is 123556301044157. The next prime is 123556301044219. The reversal of 123556301044206 is 602440103655321.

It is a sphenic number, since it is the product of 3 distinct primes.

123556301044206 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10296358420345 + ... + 10296358420356.

It is an arithmetic number, because the mean of its divisors is an integer number (30889075261053).

Almost surely, 2^{123556301044206} is an apocalyptic number.

123556301044206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123556301044206 is a wasteful number, since it uses less digits than its factorization.

123556301044206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20592716840706.

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 123556301044206 its reverse (602440103655321), we get a palindrome (725996404699527).

The spelling of 123556301044206 in words is "one hundred twenty-three trillion, five hundred fifty-six billion, three hundred one million, forty-four thousand, two hundred six".