123203030013 has 48 divisors (see below), whose sum is σ = 205290433920. Its totient is φ = 69742052352.

The previous prime is 123203029997. The next prime is 123203030023. The reversal of 123203030013 is 310030302321.

123203030013 is a `hidden beast` number, since 1 + 2 + 320 + 30 + 300 + 13 = 666.

It is not a de Polignac number, because 123203030013 - 2⁴ = 123203029997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203030023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19310658 + ... + 19317036.

It is an arithmetic number, because the mean of its divisors is an integer number (4276884040).

Almost surely, 2^123203030013 is an apocalyptic number.

It is an amenable number.

123203030013 is a deficient number, since it is larger than the sum of its proper divisors (82087403907).

123203030013 is a wasteful number, since it uses less digits than its factorization.

123203030013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9218 (or 9215 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 123203030013 its reverse (310030302321), we get a palindrome (433233332334).

The spelling of 123203030013 in words is "one hundred twenty-three billion, two hundred three million, thirty thousand, thirteen".