123030013224 has 64 divisors (see below), whose sum is σ = 317884170240. Its totient is φ = 39638681280.

The previous prime is 123030013219. The next prime is 123030013229. The reversal of 123030013224 is 422310030321.

It is an interprime number because it is at equal distance from previous prime (123030013219) and next prime (123030013229).

It is a super-2 number, since 2×123030013224² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123030013224.

It is not an unprimeable number, because it can be changed into a prime (123030013229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511849 + ... + 712775.

It is an arithmetic number, because the mean of its divisors is an integer number (4966940160).

Almost surely, 2^123030013224 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 123030013224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158942085120).

123030013224 is an abundant number, since it is smaller than the sum of its proper divisors (194854157016).

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

123030013224 is a wasteful number, since it uses less digits than its factorization.

123030013224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201790 (or 201786 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123030013224 its reverse (422310030321), we get a palindrome (545340043545).

The spelling of 123030013224 in words is "one hundred twenty-three billion, thirty million, thirteen thousand, two hundred twenty-four".