123223020032 has 80 divisors (see below), whose sum is σ = 281934544320. Its totient is φ = 52705333248.

The previous prime is 123223020029. The next prime is 123223020073. The reversal of 123223020032 is 230020322321.

It is a junction number, because it is equal to n+sod(n) for n = 123223019986 and 123223020013.

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, 1790483 + ... + 1858029.

It is an arithmetic number, because the mean of its divisors is an integer number (3524181804).

Almost surely, 2^123223020032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123223020032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140967272160).

123223020032 is an abundant number, since it is smaller than the sum of its proper divisors (158711524288).

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

123223020032 is an frugal number, since it uses more digits than its factorization.

123223020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68081 (or 68065 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 123223020032 its reverse (230020322321), we get a palindrome (353243342353).

The spelling of 123223020032 in words is "one hundred twenty-three billion, two hundred twenty-three million, twenty thousand, thirty-two".