20120130112013 has 4 divisors (see below), whose sum is σ = 20124901311420. Its totient is φ = 20115358912608.

The previous prime is 20120130111973. The next prime is 20120130112039. The reversal of 20120130112013 is 31021103102102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7848301396324 + 12271828715689 = 2801482^2 + 3503117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120130112013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20120130111982 and 20120130112000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120130112063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2385593378 + ... + 2385601811.

It is an arithmetic number, because the mean of its divisors is an integer number (5031225327855).

Almost surely, 2^{20120130112013} is an apocalyptic number.

It is an amenable number.

20120130112013 is a deficient number, since it is larger than the sum of its proper divisors (4771199407).

20120130112013 is an equidigital number, since it uses as much as digits as its factorization.

20120130112013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771199406.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20120130112013 its reverse (31021103102102), we get a palindrome (51141233214115).

The spelling of 20120130112013 in words is "twenty trillion, one hundred twenty billion, one hundred thirty million, one hundred twelve thousand, thirteen".