1223386123680 has 144 divisors (see below), whose sum is σ = 4771205921664. Its totient is φ = 279631111680.

The previous prime is 1223386123613. The next prime is 1223386123691. The reversal of 1223386123680 is 863216833221.

1223386123680 is a `hidden beast` number, since 1 + 2 + 2 + 338 + 6 + 1 + 236 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1223386123680² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 60673756 + ... + 60693915.

It is an arithmetic number, because the mean of its divisors is an integer number (33133374456).

Almost surely, 2^{1223386123680} is an apocalyptic number.

1223386123680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223386123680 is an abundant number, since it is smaller than the sum of its proper divisors (3547819797984).

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

1223386123680 is a wasteful number, since it uses less digits than its factorization.

1223386123680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121367699 (or 121367688 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 1223386123680 in words is "one trillion, two hundred twenty-three billion, three hundred eighty-six million, one hundred twenty-three thousand, six hundred eighty".