123030244213 has 32 divisors (see below), whose sum is σ = 132596352000. Its totient is φ = 113747997696.

The previous prime is 123030244193. The next prime is 123030244229. The reversal of 123030244213 is 312442030321.

It is a de Polignac number, because none of the positive numbers 2^k-123030244213 is a prime.

It is a super-2 number, since 2×123030244213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030244283) 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, 97719978 + ... + 97721236.

It is an arithmetic number, because the mean of its divisors is an integer number (4143636000).

Almost surely, 2^123030244213 is an apocalyptic number.

It is an amenable number.

123030244213 is a deficient number, since it is larger than the sum of its proper divisors (9566107787).

123030244213 is a wasteful number, since it uses less digits than its factorization.

123030244213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 123030244213 its reverse (312442030321), we get a palindrome (435472274534).

The spelling of 123030244213 in words is "one hundred twenty-three billion, thirty million, two hundred forty-four thousand, two hundred thirteen".