123301122320 has 40 divisors (see below), whose sum is σ = 286951217280. Its totient is φ = 49272946560.

The previous prime is 123301122293. The next prime is 123301122337. The reversal of 123301122320 is 23221103321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123301122292 and 123301122301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658586 + ... + 824825.

It is an arithmetic number, because the mean of its divisors is an integer number (7173780432).

Almost surely, 2^123301122320 is an apocalyptic number.

123301122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123301122320 is an abundant number, since it is smaller than the sum of its proper divisors (163650094960).

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

123301122320 is a wasteful number, since it uses less digits than its factorization.

123301122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484463 (or 1484457 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123301122320 its reverse (23221103321), we get a palindrome (146522225641).

The spelling of 123301122320 in words is "one hundred twenty-three billion, three hundred one million, one hundred twenty-two thousand, three hundred twenty".