20130123130224 has 80 divisors (see below), whose sum is σ = 52085792215584. Its totient is φ = 6699338956800.

The previous prime is 20130123130217. The next prime is 20130123130237. The reversal of 20130123130224 is 42203132103102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20130123130194 and 20130123130203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157595664 + ... + 157723344.

Almost surely, 2^{20130123130224} is an apocalyptic number.

20130123130224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20130123130224 is an abundant number, since it is smaller than the sum of its proper divisors (31955669085360).

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

20130123130224 is a wasteful number, since it uses less digits than its factorization.

20130123130224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132906 (or 132900 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20130123130224 its reverse (42203132103102), we get a palindrome (62333255233326).

The spelling of 20130123130224 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-three million, one hundred thirty thousand, two hundred twenty-four".