123063221772 has 36 divisors (see below), whose sum is σ = 311173109520. Its totient is φ = 41008331232.

The previous prime is 123063221761. The next prime is 123063221773. The reversal of 123063221772 is 277122360321.

123063221772 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 632 + 2 + 17 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (123063221773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413088 + ... + 645575.

Almost surely, 2^123063221772 is an apocalyptic number.

123063221772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123063221772 is an abundant number, since it is smaller than the sum of its proper divisors (188109887748).

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

123063221772 is a wasteful number, since it uses less digits than its factorization.

123063221772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061902 (or 1061897 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 123063221772 in words is "one hundred twenty-three billion, sixty-three million, two hundred twenty-one thousand, seven hundred seventy-two".