123222001320 has 192 divisors, whose sum is σ = 448686051840. Its totient is φ = 29064614400.

The previous prime is 123222001307. The next prime is 123222001387. The reversal of 123222001320 is 23100222321.

123222001320 is a `hidden beast` number, since 1 + 2 + 322 + 20 + 0 + 1 + 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 = 123222001293 and 123222001302.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 273976 + ... + 567015.

It is an arithmetic number, because the mean of its divisors is an integer number (2336906520).

Almost surely, 2^123222001320 is an apocalyptic number.

123222001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123222001320 is an abundant number, since it is smaller than the sum of its proper divisors (325464050520).

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

123222001320 is a wasteful number, since it uses less digits than its factorization.

123222001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841056 (or 841049 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 123222001320 its reverse (23100222321), we get a palindrome (146322223641).

It can be divided in two parts, 123222001 and 320, that added together give a palindrome (123222321).

The spelling of 123222001320 in words is "one hundred twenty-three billion, two hundred twenty-two million, one thousand, three hundred twenty".