123313255343250 has 256 divisors, whose sum is σ = 354311557337088. Its totient is φ = 27982129612800.

The previous prime is 123313255343189. The next prime is 123313255343273. The reversal of 123313255343250 is 52343552313321.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 420541189 + ... + 420834311.

It is an arithmetic number, because the mean of its divisors is an integer number (1384029520848).

Almost surely, 2^{123313255343250} is an apocalyptic number.

123313255343250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123313255343250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177155778668544).

123313255343250 is an abundant number, since it is smaller than the sum of its proper divisors (230998301993838).

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

123313255343250 is a wasteful number, since it uses less digits than its factorization.

123313255343250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293730 (or 293720 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 42.

The spelling of 123313255343250 in words is "one hundred twenty-three trillion, three hundred thirteen billion, two hundred fifty-five million, three hundred forty-three thousand, two hundred fifty".