123221210034 has 64 divisors (see below), whose sum is σ = 267198220800. Its totient is φ = 37881806976.

The previous prime is 123221210029. The next prime is 123221210039. The reversal of 123221210034 is 430012122321.

It is an interprime number because it is at equal distance from previous prime (123221210029) and next prime (123221210039).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123221210039) 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 31 ways as a sum of consecutive naturals, for example, 18754702 + ... + 18761270.

It is an arithmetic number, because the mean of its divisors is an integer number (4174972200).

Almost surely, 2^123221210034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123221210034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133599110400).

123221210034 is an abundant number, since it is smaller than the sum of its proper divisors (143977010766).

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

123221210034 is a wasteful number, since it uses less digits than its factorization.

123221210034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036 (or 8010 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123221210034 its reverse (430012122321), we get a palindrome (553233332355).

The spelling of 123221210034 in words is "one hundred twenty-three billion, two hundred twenty-one million, two hundred ten thousand, thirty-four".