123350400013256 has 64 divisors (see below), whose sum is σ = 250471979881200. Its totient is φ = 56611425189888.

The previous prime is 123350400013231. The next prime is 123350400013297. The reversal of 123350400013256 is 652310004053321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 77775290140900 + 45575109872356 = 8819030^2 + 6750934^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45015500 + ... + 47676996.

Almost surely, 2^{123350400013256} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123350400013256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125235989940600).

123350400013256 is an abundant number, since it is smaller than the sum of its proper divisors (127121579867944).

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

123350400013256 is a wasteful number, since it uses less digits than its factorization.

123350400013256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664018 (or 2664014 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 123350400013256 its reverse (652310004053321), we get a palindrome (775660404066577).

The spelling of 123350400013256 in words is "one hundred twenty-three trillion, three hundred fifty billion, four hundred million, thirteen thousand, two hundred fifty-six".