123223121130 has 64 divisors (see below), whose sum is σ = 313262225280. Its totient is φ = 30913695744.

The previous prime is 123223121129. The next prime is 123223121141. The reversal of 123223121130 is 31121322321.

It is a junction number, because it is equal to n+sod(n) for n = 123223121097 and 123223121106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1204962 + ... + 1303218.

It is an arithmetic number, because the mean of its divisors is an integer number (4894722270).

Almost surely, 2^123223121130 is an apocalyptic number.

123223121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123223121130 is an abundant number, since it is smaller than the sum of its proper divisors (190039104150).

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

123223121130 is a wasteful number, since it uses less digits than its factorization.

123223121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100743.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123223121130 its reverse (31121322321), we get a palindrome (154344443451).

The spelling of 123223121130 in words is "one hundred twenty-three billion, two hundred twenty-three million, one hundred twenty-one thousand, one hundred thirty".