20130123130197 has 16 divisors (see below), whose sum is σ = 27091331606592. Its totient is φ = 13294501377920.

The previous prime is 20130123130151. The next prime is 20130123130207. The reversal of 20130123130197 is 79103132103102.

It is a cyclic number.

It is not a de Polignac number, because 20130123130197 - 2²² = 20130118935893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20180123130197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30346963 + ... + 31003199.

It is an arithmetic number, because the mean of its divisors is an integer number (1693208225412).

Almost surely, 2^{20130123130197} is an apocalyptic number.

It is an amenable number.

20130123130197 is a deficient number, since it is larger than the sum of its proper divisors (6961208476395).

20130123130197 is a wasteful number, since it uses less digits than its factorization.

20130123130197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751908.

The product of its (nonzero) digits is 6804, while the sum is 33.

Adding to 20130123130197 its reverse (79103132103102), we get a palindrome (99233255233299).

The spelling of 20130123130197 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-three million, one hundred thirty thousand, one hundred ninety-seven".