123200302320 has 160 divisors (see below), whose sum is σ = 428477337600. Its totient is φ = 32534390016.

The previous prime is 123200302283. The next prime is 123200302321. The reversal of 123200302320 is 23203002321.

It is a happy number.

123200302320 is a `hidden beast` number, since 1 + 23 + 20 + 0 + 302 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123200302293 and 123200302302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123200302321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54400 + ... + 499359.

It is an arithmetic number, because the mean of its divisors is an integer number (2677983360).

Almost surely, 2^123200302320 is an apocalyptic number.

123200302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123200302320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214238668800).

123200302320 is an abundant number, since it is smaller than the sum of its proper divisors (305277035280).

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

123200302320 is a wasteful number, since it uses less digits than its factorization.

123200302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553884 (or 553872 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 123200302320 its reverse (23203002321), we get a palindrome (146403304641).

The spelling of 123200302320 in words is "one hundred twenty-three billion, two hundred million, three hundred two thousand, three hundred twenty".