123934122816 has 112 divisors (see below), whose sum is σ = 374833920384. Its totient is φ = 35402121216.

The previous prime is 123934122787. The next prime is 123934122841. The reversal of 123934122816 is 618221439321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9929956 + ... + 9942428.

It is an arithmetic number, because the mean of its divisors is an integer number (3346731432).

Almost surely, 2^123934122816 is an apocalyptic number.

123934122816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123934122816 is an abundant number, since it is smaller than the sum of its proper divisors (250899797568).

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

123934122816 is a wasteful number, since it uses less digits than its factorization.

123934122816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19888 (or 19878 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The spelling of 123934122816 in words is "one hundred twenty-three billion, nine hundred thirty-four million, one hundred twenty-two thousand, eight hundred sixteen".