123030123013 has 12 divisors (see below), whose sum is σ = 143541371532. Its totient is φ = 105141456000.

The previous prime is 123030123001. The next prime is 123030123059. The reversal of 123030123013 is 310321030321.

It can be written as a sum of positive squares in 2 ways, for example, as 58555772289 + 64474350724 = 241983^2 + 253918^2 .

It is not a de Polignac number, because 123030123013 - 2⁵ = 123030122981 is a prime.

It is a super-2 number, since 2×123030123013² (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 (123030123913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3708738 + ... + 3741763.

It is an arithmetic number, because the mean of its divisors is an integer number (11961780961).

Almost surely, 2^123030123013 is an apocalyptic number.

It is an amenable number.

123030123013 is a deficient number, since it is larger than the sum of its proper divisors (20511248519).

123030123013 is an equidigital number, since it uses as much as digits as its factorization.

123030123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7450852 (or 7450845 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 123030123013 its reverse (310321030321), we get a palindrome (433351153334).

The spelling of 123030123013 in words is "one hundred twenty-three billion, thirty million, one hundred twenty-three thousand, thirteen".