123301797913890 has 96 divisors (see below), whose sum is σ = 332558552342016. Its totient is φ = 32870552613120.

The previous prime is 123301797913843. The next prime is 123301797913909. The reversal of 123301797913890 is 98319797103321.

123301797913890 is a `hidden beast` number, since 1 + 2 + 330 + 17 + 9 + 79 + 138 + 90 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 392655 + ... + 15708525.

It is an arithmetic number, because the mean of its divisors is an integer number (3464151586896).

Almost surely, 2^{123301797913890} is an apocalyptic number.

123301797913890 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 123301797913890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166279276171008).

123301797913890 is an abundant number, since it is smaller than the sum of its proper divisors (209256754428126).

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

123301797913890 is a wasteful number, since it uses less digits than its factorization.

123301797913890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15319206 (or 15319194 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 63.

The spelling of 123301797913890 in words is "one hundred twenty-three trillion, three hundred one billion, seven hundred ninety-seven million, nine hundred thirteen thousand, eight hundred ninety".