20131303123113 has 32 divisors (see below), whose sum is σ = 34472331780096. Its totient is φ = 10157026321728.

The previous prime is 20131303123073. The next prime is 20131303123157. The reversal of 20131303123113 is 31132130313102.

It is not a de Polignac number, because 20131303123113 - 2¹⁸ = 20131302860969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20131303123313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1603059745 + ... + 1603072302.

It is an arithmetic number, because the mean of its divisors is an integer number (1077260368128).

Almost surely, 2^{20131303123113} is an apocalyptic number.

20131303123113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20131303123113 is a deficient number, since it is larger than the sum of its proper divisors (14341028656983).

20131303123113 is a wasteful number, since it uses less digits than its factorization.

20131303123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206132093.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 20131303123113 its reverse (31132130313102), we get a palindrome (51263433436215).

The spelling of 20131303123113 in words is "twenty trillion, one hundred thirty-one billion, three hundred three million, one hundred twenty-three thousand, one hundred thirteen".